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Combustible Gas Leak Detector 50ppm with Built-in Sensor , Propane Butane Methane Natural Gas, Adjustable Sound Light Alarm Tester https://gainexpress-dealer.com/products/the-34 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/thermometer-THE-34-preview.jpg?v=1493962283 THE-34 -50~750°C/ -58~1382°F Non Contact Digital IR Infrared Laser Thermometer 12:1 DS Pyrometer https://gainexpress-dealer.com/products/the-32 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-gain-express-thermometer-THE-32-preview.jpg?v=1523352381 THE-32 Digital K / J / T / E / R / S / N Type Thermocouple Thermometer Dual-channel -150~1767°C (-238~3212°F) https://gainexpress-dealer.com/products/lux-31 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/Lux-meter-LUX-31-preview.jpg?v=1493962353 LUX-31 Digital Light Mini Lux Meter Measurement Range 0 ~ 200,000 LUX / 0 ~ 18,500 FC, Portable Instrument, Auto Range https://gainexpress-dealer.com/products/slm-30 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/gainexpress-gain-express-sound-level-meter-SLM-30-preview.jpg?v=1493962379 SLM-30 Professional Digital Sound Level Meter, 30~130dBA, A weighting, Decibel Noise Tester, LCD display with Backlight, High Accuracy ±1.5dB, MAX/ MIN/ HOLD Mode, for Noise Volume Measuring, Monitoring https://gainexpress-dealer.com/products/lux-29 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/gainexpress-gain-express-Lux-meter-LUX-29-preview.jpg?v=1493962423 LUX-29 Digital Light Lux Meter with Data Logging Measurement Range 0 to 200,000 Lux Auto Ranging Instrument https://gainexpress-dealer.com/products/the-27 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/gainexpress-gain-express-thermocouple-THE-27-preview.jpg?v=1493962438 THE-27 Digital Thermometer 4 Channel K-Type Thermocouples with K-Type Metal & Bead Probe , Thermometer , Backlight , Temperature Instrument , -50 ~ 1350 °C (-58 ~ 2462 °F) https://gainexpress-dealer.com/products/the-26 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/THE-26_preview.jpg?v=1493962452 THE-26 Digital Thermometer Dual Type-K Thermocouples Probe Temperature Instrument Large Display with Backlight https://gainexpress-dealer.com/products/slm-24 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/gainexpress-gain-express-sound-level-meter-SLM-24-preview.jpg?v=1493962470 SLM-24 Professional Sound Level Meter with Backlit Display High Accuracy Measuring 30dB-130dB Compact Instrument https://gainexpress-dealer.com/products/slm-25 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/gain-express-gainexpress-sound-level-meter-SLM-25-preview.jpg?v=1603078776 SLM-25 Sound Level Meter with Backlit Display High Accuracy Measuring 30dB~130dB with Data Logging Function Instrument Compact Professional https://gainexpress-dealer.com/products/clmg-7205 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/files/CLMG-7205-preview.jpg?v=1774264213 CLMG-7205 Pocket Diffraction Grating Gemological Spectroscope Gem Stone Jeweller Tool https://gainexpress-dealer.com/products/voc-21 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gain-express-gainexpress-CO2-Meter-VOC-21_US-preview.jpg?v=1522661972 VOC-21 VOC Monitor Tester Indoor Air Quality IAQ Meter Detector 0~50ppm- Temperature, Humidity, Air Contaminants Measure Tester https://gainexpress-dealer.com/products/ws-104_eu_3s 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gain-express-gainexpress-weather-station-WS-104_3S-preview_EU_1024x1024_4f2d57d3-f32c-44cf-8024-e11e146066bc.jpg?v=1532936938 WS-104_EU_3S Weather Station Indoor Outdoor Temperature Humidity DCF / WWVB 3 Wireless Remote 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WS-104_US_2S Wireless Weather Station Temperature Humidity DCF / WWVB 2 Remote Sensor Indoor Outdoor https://gainexpress-dealer.com/products/ws-103-us_2s 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/gain_express_gainexpress_weather_station_WS-103_preview_4bffc44c-317f-4947-a996-a92f3ee40b42.jpg?v=1493962616 WS-103-US_2S Weather Station Forecast Indoor Outdoor Air Pressure Thermometer Temperature Tester https://gainexpress-dealer.com/products/ws-103-eu_2s 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/gain_express_gainexpress_weather_station_WS-103_preview.jpg?v=1493962625 WS-103-EU_2S Weather Station Forecast Indoor Outdoor Air Pressure Thermometer Temperature Tester https://gainexpress-dealer.com/products/e04-011_us 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gain-express-gainexpress-Circuit-Breaker-Finder-_1.jpg?v=1592550843 E04-011_US 110V Automatic Circuit Breaker Finder Receiver Transmitter Fuse https://gainexpress-dealer.com/products/oz-004 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/gain_express_gainexpress_Ozone_generator_OZ-004_preview.jpg?v=1493962729 OZ-004 Digital Ozone Generator Air Quality Purifier O3 Clean Sterilization Air Dryer 200mG/H 220V ONLY https://gainexpress-dealer.com/products/ck-109_yellow 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/KC-109A-yellow_preview-Alib.jpg?v=1493962818 CK-109_yellow 5in1 Distance Meter Stud Metal Live Wire Detector & Laser Marker https://gainexpress-dealer.com/products/ar-166_220v 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/AR-166_preview220.jpg?v=1493962830 AR-166_220V Electronic Ultrasonic Mouse Mosquito Repeller 50/60Hz https://gainexpress-dealer.com/products/ar-111_220v 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/AR-111B_preview220.jpg?v=1493962850 AR-111_220V Ultrasonic Mosquito Repeller Repellent Electronic Pest Control https://gainexpress-dealer.com/products/s08s613b_1s 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/S08S613B_1S_preview.jpg?v=1493962858 S08S613B_1S Wireless Digital Weather Forecast Station Humidity Indoor/Outdoor Temperature RCC Clock Calendar https://gainexpress-dealer.com/products/vid-71r-5-5-2m 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/gain_express_gainexpress_endoscope_VID-71R-5-5-2M_preview1.jpg?v=1493962917 VID-71R-5.5-2M 5.5mm Camera 2M Cable Recordable Video Inspection 2.4" HD Endoscope Snakescope Industrial Borescope 4 LED Pipe Car Engine Scopes https://gainexpress-dealer.com/products/vid-71_9_3m 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/gain_express_gainexpress_endoscope_VID-71-9-3M_LED_preview.jpg?v=1493963072 VID-71_9_3M 2.4" HD Industrial Endoscope 9mm Camera 4 LED Snake Scope Car Engine Inspection Tube Pipe 3 Meter Cable Borescope https://gainexpress-dealer.com/products/hcho-d001 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/gain_express_gainexpress_datalogger_HCHO-D001_preview.jpg?v=1493963140 HCHO-D001 Desktop Digital Air Quality Formaldehyde HCHO Thermo-hygrometer 0~5ppm Datalogger IAQ Meter Stand Alone Logger Taiwan Made Monitor https://gainexpress-dealer.com/products/sns-orp-001 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/H02ORP-619_optional_preview.jpg?v=1493963143 SNS-ORP-001 An Extra ORP Electrode for 2-in-1 ORP & Temperature Pentype Tester https://gainexpress-dealer.com/products/dmt-3 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gain-express-gainexpress-Diamond-tester-DMT-3-preview_1024x1024_304bae98-e65a-4f81-a982-47a7a6e03b30.jpg?v=1622790993 DMT-3 Diamond Moissanite Tester Gemstone 2pt Jewel Stone Combo Gem Jewelry Test Tool https://gainexpress-dealer.com/products/t05-001 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/gain_express_gainexpress_film_coating_thickness_gauge_T05-001_preview.jpg?v=1493963198 T05-001 Non-Destructive Digital Film / Coating Thickness Gauge Meter 1800um Magnetic Induction https://gainexpress-dealer.com/products/ce-7200a 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/CE-7200A_preview_0b87c1bf-927e-48c8-a71a-0d9bca8a8fbc.jpg?v=1493963243 CE-7200A Stainless Steel 2.5L Ultrasonic Cleaner Heater Jewelry Watches Dentures w/ Timer 220V ONLY https://gainexpress-dealer.com/products/e04-036 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gain-express-gainexpress-Car-tools-and-Equipment.jpg?v=1592810451 E04-036 Automotive Cable Wire Tracker Short & Open Finder Tester Car Repair Tracer Tool https://gainexpress-dealer.com/products/e04-035 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/E04-035_preview_881_1024x1024_3aa78186-95c3-4099-a411-82961fcfa729.jpg?v=1592809123 E04-035 Phase Sequence and Motor Rotation Conveyors Pump Tester Meter Tool 120~460VAC https://gainexpress-dealer.com/products/e04-034 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/gain-express-gainexpress-EMF-meter-E04-034-Preview.jpg?v=1592807018 E04-034 Handheld Microwave Oven Leakage Monitor https://gainexpress-dealer.com/products/vid-10 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/VID-10_preview.jpg?v=1493963307 VID-10 Industrial 2.31" TFT LCD 8mm Camera Borescope Endoscope 4 LED Lights https://gainexpress-dealer.com/products/x01rz-e40 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/X01RZ-E40_preview.jpg?v=1493963318 X01RZ-E40 Digital 40M Laser Distance Area Volume Pythagorean w/ Spirit Level Range Finder Tool https://gainexpress-dealer.com/products/x01rz-e100 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/X01RZ-E100_preview_e876107e-517b-4e14-bb4c-b84e6beef5fc.jpg?v=1493963345 X01RZ-E100 Laser Distance 100 Meter Area Volume Pythagorean w/ Spirit Level Measurer Range Finder https://gainexpress-dealer.com/products/cp-rhbn90 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/CP-RHBN90.jpg?v=1493963371 CP-RHBN90 Cover Plate for New Design Honey Refractometer https://gainexpress-dealer.com/products/x01rz-e60 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/X01RZ-E60_preview.jpg?v=1493963412 X01RZ-E60 Digital 60 Meter Laser Distance Area Volume Pythagorean w/ Spirit Level Industrial Use https://gainexpress-dealer.com/products/mc-7828gg 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gain-express-gainexpress-Moisture-meter-MC-7828GG-preview.jpg?v=1582364618 MC-7828GG Digital Grain Seed Moisture Meter Rice Coffee Wheat Tester 7~30% LED Indicator 36 Species https://gainexpress-dealer.com/products/mc-7828pp 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/MC7828P_preview.jpg?v=1493963438 MC-7828PP Digital Wood Moisture Meter Pin Type Cotton Paper 80% LED Indicator Tester https://gainexpress-dealer.com/products/vm-6370 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/VM-6370_preview.jpg?v=1493963464 VM-6370 Vibration Meter Piezoelectric Sensor Displacement Velocity Acceleration 10Hz~10kHz Range https://gainexpress-dealer.com/products/wtm-1100 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/gain-express-gainexpress-Car-tools-and-Equipment-WTM-11000-whole_2_230_1024x1024_82cf73ac-e600-4795-b45e-5dc95942bc3b.jpg?v=1646297843 WTM-1100 Window Tint Meter Visual Light Transmission 18mm Thickness Continuous Measuring https://gainexpress-dealer.com/products/tm-8818 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/TM-8818_preview.jpg?v=1493963492 TM-8818 Ultrasonic Thickness Gauge Meter Aluminum Steel Cast Iron Pipes 0.9~400mm Range https://gainexpress-dealer.com/products/th-8800s 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/TH-8800S_preview.jpg?v=1493963522 TH-8800S Body Surface Temperature Non Contact Infrared IR Thermometer Baby Adult Forehead °C °F https://gainexpress-dealer.com/products/vid-5 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/VID-5_preview_452e15a0-7aec-4e6c-93b5-c660aa16edc0.jpg?v=1547450178 VID-5 Industrial 2.4 inch TFT LCD Video Borescope Car Pipe Inspection 10mm Camera https://gainexpress-dealer.com/products/m04-004 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/M04-004_preview.jpg?v=1493963554 M04-004 Handheld 100m Laser Distance Meter Area Volume Indirect Measure w/ Bubble Level https://gainexpress-dealer.com/products/m04-001 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/M04-001_preview.jpg?v=1493963587 M04-001 Digital Laser Distance Meter Measure Area Volume Pythagoras 0.1~40m Range Finder https://gainexpress-dealer.com/products/c0599e-5530l1 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/C0599E-5530L1_preview.jpg?v=1493963618 C0599E-5530L1 Industrial 3.5inch LCD 5.5mm Camera Video Inspection 6 LED Lights Borescope Endoscope https://gainexpress-dealer.com/products/c0599h-5530l1 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/C0599H-5530L1_preview.jpg?v=1493963656 C0599H-5530L1 Industrial Endoscope 3.5" LCD Video Inspection 5.5mm Camera Borescope 1M Cable https://gainexpress-dealer.com/products/c0599w2 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/gain-express-gainexpress-Inspection-Camera-C0599W2.jpg?v=1592463787 C0599W2 Handheld Inspection 8.5mm Camera HD WIFI Endoscope 6 LED Lights Borescope Tube iOS Android https://gainexpress-dealer.com/products/c0588as 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gain-express-gainexpress-Inspection-Camera-C0588AS-preview.jpg?v=1591079554 C0588AS USB HD 8.5mm Camera Video Inspection 6 LED Light Borescope Tape Style Endoscope https://gainexpress-dealer.com/products/c0588b 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/C0588B_preview.jpg?v=1493963714 C0588B Portable 2.4"Video Inspection Endoscope 12mm Camera with Built-in 36" Cable https://gainexpress-dealer.com/products/c0599d-5530l1 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/C0599D-5530L1_preview.jpg?v=1493963734 C0599D-5530L1 Handheld 2.4 inch Video Inspection 5.5mm Camera Endoscope 1M Cable 3 LED https://gainexpress-dealer.com/products/cdc-b 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/optional-web.jpg?v=1493963735 CDC-B USB Cable RS232 CD Software with 3.5mm Diameter Jack https://gainexpress-dealer.com/products/cdc-s 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/optional-web2.5.jpg?v=1493963739 CDC-S USB Cable RS232CD Software with 2.5mm Diameter Jack https://gainexpress-dealer.com/products/e04-024 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/E04-024_preview.jpg?v=1493963762 E04-024 Automotive Multimeter Scan Car Engine Analyzer RPM Voltage Current Dwell Angle https://gainexpress-dealer.com/products/e04-033 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/E04-033_preview.jpg?v=1493963791 E04-033 Digital Clamp Meter Autorange Phase Sequence Test DC AC Voltage AC Current Diode https://gainexpress-dealer.com/products/srt-6100 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/SRT-6100_previews.jpg?v=1493963792 SRT-6100 High Accuracy Portable Surface Roughness Tester Rz Ra https://gainexpress-dealer.com/products/e04-023 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/E04-023_preview.jpg?v=1493963831 E04-023 Automotive Multimeter AC DC Voltage Current Resistance Continuity Tester https://gainexpress-dealer.com/products/e04-032 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/E04-032_preview_302_1024x1024_346479c0-2ed5-46dc-a67a-419686c1c752.jpg?v=1592806013 E04-032 Digital Clamp Meter Multimeter DC AC Voltage Current Resistance Diode Continuity Tester https://gainexpress-dealer.com/products/s08s620pv_3s 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/S08S620PV_3S_preview.jpg?v=1493963895 S08S620PV_3S Wireless Weather Station Indoor/Outdoor Temperature Humidity RH Air Pressure RCC DCF Barometer with Bar Chart + 3 sensors 110V / 220V https://gainexpress-dealer.com/products/s08s620pv_2s 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/S08S620PV_2S_preview.jpg?v=1493963924 S08S620PV_2S Indoor/Outdoor Digital Wireless Weather Station Temperature Relative Humidity RH Air Pressure RCC DCF with Bar Chart + 2 sensors 110V / 220V https://gainexpress-dealer.com/products/ss08s620pv_1s 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/S08S620PV_1S_preview_grande_f3de2e19-aaec-498e-bc04-2d3a3d0b2726.jpg?v=1493963947 S08S620PV_1S Indoor/Outdoor Wireless Weather Station Temperature Humidity RH Air Pressure RCC DCF with Bar Chart 110V / 220V https://gainexpress-dealer.com/products/gm-06 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/GM-06_preview.jpg?v=1493963960 GM-06 Gloss meter 60 Degrees With Range 0.1 ~ 200 Gloss Units https://gainexpress-dealer.com/products/gm-268 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/GM-268_preview.jpg?v=1493963982 GM-268 Portable Multi Gloss Meter Tester With 4 Digits Backlight LCD https://gainexpress-dealer.com/products/e04-028 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/gain-express-gainexpress-Car-tools-and-Equipment-E_3.jpg?v=1592804612 E04-028 Automotive Diagnosis Tester Measure DC Voltage Frequency & Duty Cycle https://gainexpress-dealer.com/products/e04-031 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/E04-031_preview.jpg?v=1493964026 E04-031 Transmitter & Receiver Cable Tester Identifier Alligator Clip Test DC Voltage Continuity https://gainexpress-dealer.com/products/e04-029 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/E04-029_preview.jpg?v=1493964043 E04-029 Car Data Saver 12V DC Hold Memory Code Engine Maintenance Radio Station Clock Setting https://gainexpress-dealer.com/products/s08s3318bl_3s 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/S08S3318BL_3S_preview.jpg?v=1493964063 S08S3318BL_3S Indoor/Outdoor Temperature Digital Wireless Weather Station RCC DCF + 3 sensors https://gainexpress-dealer.com/products/s08s3318bl_2s 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/S08S3318BL_2S_preview.jpg?v=1493964075 S08S3318BL_2S In/Out Temperature Wireless Weather Station DCF Radio Controlled Clock 2 Sensor https://gainexpress-dealer.com/products/c0588g 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/C0588G_preview.jpg?v=1493964145 C0588G Watch Type Wearable Borescope endoscope Video inspection camera 8.5mm diameter + 1M Cable https://gainexpress-dealer.com/products/set-d 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/SET-D.jpg?v=1493964147 GEM GEMSTONE GEMOLOGICAL IDENTIFICATION KIT x 4 Set D https://gainexpress-dealer.com/products/gm-20xx 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/GM-20XX_preview.jpg?v=1493964165 GM-20XX Mini 20x Magnifying Optical Glass LED Light Jeweler Loupe https://gainexpress-dealer.com/products/mr-011 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/MR-011_preview.jpg?v=1493964186 MR-011 Watch-type Ultrasonic Electronic Anti Mosquito Killer Repeller Repellent Control https://gainexpress-dealer.com/products/sp-7234c 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/SP-7234C_preview.jpg?v=1493964190 SP-7234C Photoelectric Distance Digital Non Contact Laser Tachometer https://gainexpress-dealer.com/products/ph-025temp 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/PH-025TEMP_preview.jpg?v=1493964196 PH-025TEMP Digital pH Monitor Tester Meter Thermometer Aquarium https://gainexpress-dealer.com/products/sp-7236c 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/SP-7236C_preview.jpg?v=1493964205 SP-7236C Digital Contact & Laser Tachometer RPM Counter https://gainexpress-dealer.com/products/ir887-1 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/IR887-1-preview.jpg?v=1493964210 IR887-1 Non-Contact Mini IR Thermometer + Laser -40~500°C / -40~932°F https://gainexpress-dealer.com/products/vm63a 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/VM63A_set.jpg?v=1493964225 VM63A Handheld Digital Vibration Sensor Meter Tester Vibrometer Analyzer Acceleration Velocity Displacement https://gainexpress-dealer.com/products/m0198130 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/gain_express_gainexpress_CO2_Monitor_M0198130_preview.jpg?v=1493964245 M0198130 Indoor Air Quality CO2 Monitor Temp. WB DP TWA STEL & Vent Rate https://gainexpress-dealer.com/products/m0198158 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/M0198158_preview.jpg?v=1493964363 M0198158 Wallmount Smart LED Display VOC Carbon Dioxide (CO2) Temperature RH Monitor Made in Taiwan https://gainexpress-dealer.com/products/m0198101 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/m0198101_preview.jpg?v=1493964402 M0198101 Digital Wall mount/Desktop 0~9999ppm CO Monitor Temperature Tester Made in Taiwan https://gainexpress-dealer.com/products/ldm-158 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/LDM-158_preview.jpg?v=1493964413 LDM-158 Handheld Ultrasonic Laser Distance Meter 60M https://gainexpress-dealer.com/products/va-6502 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/VA-6502_preview.jpg?v=1493964455 VA-6502 Digital Food Cooking Kitchen Thermometer Temperature Meter https://gainexpress-dealer.com/products/ir-350 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/IR-350_preview.jpg?v=1493964462 IR-350 Digital 12:1 DS Infrared IR Laser Non-Contact Digital Thermometer https://gainexpress-dealer.com/products/az-8891 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/AZ-8891_preview.jpg?v=1493964468 AZ-8891 Waterproof Digital Thermometer Monitor Beer Wine Meter https://gainexpress-dealer.com/products/e03rc-4 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/E03RC-4_preview.jpg?v=1493964475 E03RC-4 Digital Temperature USB interface Data Logger 16000 Points https://gainexpress-dealer.com/products/m0198713 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/M0198713_preview.jpg?v=1493964483 M0198713 Digital 2-in-1 Pen-type Paper Moisture Spring Type Sensor Made in Taiwan https://gainexpress-dealer.com/products/m0198652 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/M0198652_preview.jpg?v=1493964493 M0198652 Hand Held Thermo-Hygro-Anemometer Vane Made in Taiwan https://gainexpress-dealer.com/products/03100 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-shower-thermometer-03100-preview.jpg?v=1601376694 03100 Waterproof Digital Shower Thermometer w/ Alarm Alert Hot Cold CE Approved https://gainexpress-dealer.com/products/cond-21 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/Cond-21_preview.jpg?v=1493964524 Cond-21 Waterproof Professional Digital 19990us/cm ATC Conductivity Meter EC Tester Taiwan Made https://gainexpress-dealer.com/products/ir-600 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/IR-600_preview.jpg?v=1493964545 IR-600 Infrared IR Laser Thermometer -32~400°C / -26~752°F Distance Spot-Ratio 12:1 https://gainexpress-dealer.com/products/m0198585 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/M0198585_preview.jpg?v=1493964577 M0198585 Wallmount / Desktop Temperature Humidity RH Datalogger Monitor https://gainexpress-dealer.com/products/m0198873 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/M0198873_preview.jpg?v=1493964601 M0198873 Thermo-Hygrometer Relative Humidity Temperature Meter RH Tester Taiwan Made https://gainexpress-dealer.com/products/m0198108 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/M0198108_preview.jpg?v=1493964637 M0198108 Digital Carbon Monoxide (CO) Temperature Meter Made in Taiwan https://gainexpress-dealer.com/products/zgrs-10atc 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/ZGRS-10ATC_preview.jpg?v=1493964656 ZGRS-10ATC 0-10% ATC Handheld Salinity Refractometer w/ Built-in LED Light Source https://gainexpress-dealer.com/products/zd-06 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gain-express-gainexpress-Moisture-meter-ZD-06-preview.jpg?v=1590118648 ZD-06 Soil pH & Moisture Tester Meter with 295mm Long Electrode Probe Waterproof Soil Tester Kit https://gainexpress-dealer.com/products/zd-05 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/gain-express-gainexpress-Moisture-meter-ZD-05-preview_480x480_9f58a6fc-f48a-4b16-9e6d-a0887e86f009.jpg?v=1560496384 ZD-05 Waterproof 2in1 Dual Soil pH Level Moisture Meter https://gainexpress-dealer.com/products/wtm-1000 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/WTM-1000_set.jpg?v=1493964743 WTM-1000 Digital Window Tint Meter Light Transmittance Glass https://gainexpress-dealer.com/products/ws-815 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/WS-815_preview.jpg?v=1493964750 WS-815 Digital 25kg/55lb LCD Fish Weighing Scale w/ RUBBER SIDE HANDLE https://gainexpress-dealer.com/products/vm-6360 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/VM-6360_preview.jpg?v=1493964765 VM-6360 Digital Vibration Meter with LCD , Gauge Tester Analyzer https://gainexpress-dealer.com/products/vid-6 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/VID-6_preview.jpg?v=1493964887 VID-6 Digital USB Endoscope Inspection Video Borescope Camera https://gainexpress-dealer.com/products/vid-12_2m 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/VID-12_2M-preview3.jpg?v=1493964941 VID-12_2M Wireless 3.5" LCD Inspection Camera Endoscope Borescope + 2 Meter Cable https://gainexpress-dealer.com/products/vid-12_1m 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/gainexpress-gain-express-endoscope-VID-12_1M-previ.jpg?v=1592378199 VID-12_1M Wireless 3.5" LCD Inspection Camera Endoscope Borescope + 1 Meter Cable https://gainexpress-dealer.com/products/vgt-800 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/VGT-800_upclose.jpg?v=1493964963 VGT-800 Ultrasonic Cleaner 600ml Jewellery Dental Watch 220V https://gainexpress-dealer.com/products/vc-99 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gain-express-gainexpress-Multimeter-VC-99-preview_1024x1024_62627a75-aa58-416a-a669-93a2af238e0c.jpg?v=1518493941 VC-99 Digital Tester Multimeter Thermometer Resistance https://gainexpress-dealer.com/products/vc-8145 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/gainexpress-gain-express-multimeter-VC8145-preview_1024x1024_e2ed40ed-3166-4e80-abd6-a8ffb38c6eec.jpg?v=1562827478 VC-8145 DMM Digital Bench Top Multimeter PC Analog Bar Meter https://gainexpress-dealer.com/products/vc-2002 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/465121562_460.jpg?v=1493965053 VC-2002 Digital Function Signal Generator Multimeter 0.2Hz-2MHz https://gainexpress-dealer.com/products/lx-1332b 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gain-express-gainexpress-Lux-Light-Meter-LX-1332B-preview_1024x1024_55a54e04-866a-4291-9e0f-f8054e34c72d.jpg?v=1518162435 LX-1332B Digital 4 Ranges Lux / Light Meter 0.1~200,000 Lux https://gainexpress-dealer.com/products/jdm-800 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/JDM-800.jpg?v=1493965076 Use for Ozone Generator an Optional Air pump Available in 110V & 220V ( JDM-800 ) https://gainexpress-dealer.com/products/air-dryer 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/AIR-DRYER_preview.jpg?v=1493965077 Use for Ozone Generator an Optional Air Dryer Moisture Absorbing Silica Beads ( AIR-DRYER ) https://gainexpress-dealer.com/products/oil-honey 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/gainexpress-gain-express-refractometer-OIL-HONEY-preview_462_1024x1024_c986ee04-b7dd-4244-bd44-d27316151083.jpg?v=1598866884 For New design or Traditional Honey Brix Refractometer Reference Block and Dioptric oil (OIL-HONEY) https://gainexpress-dealer.com/products/tp-02 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/TP-02_preview.jpg?v=1493965079 TP-02 Optional 2 Temperatue Probes for Digital K-Type Thermometer (DM-68022) https://gainexpress-dealer.com/products/tmm-091 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/TMM-091_preview.jpg?v=1493965097 TMM-091 Tenmars Radiation Geiger Counter Monitor Gamma Beta Dose Meter Nuclear Dosage Dosimeter Alarm Device Taiwan Made https://gainexpress-dealer.com/products/tm100 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/TM-100_preview.jpg?v=1493965102 TM100 Ultrasonic Thickness Meter Tester Gauge Velocity 1.2~225mm Metal https://gainexpress-dealer.com/products/tm-8812 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/TM-8812_whole_82d3ee2c-abc4-49b3-972d-216c6e1d276c.jpg?v=1493965108 TM-8812 Ultrasonic Digital 1.00-200.00mm Thickness Meter Metal/Non-Metal https://gainexpress-dealer.com/products/tm-8811 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/TM-8811_preview_1d6e0df8-9a83-4882-a380-b8af4c2bc892.jpg?v=1493965133 TM-8811 Digital Ultrasonic Thickness Gauge Meter 1.5 - 200mm https://gainexpress-dealer.com/products/th-9806 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/467772771_504.jpg?v=1493965144 TH-9806 2-in-1 Aquarium Thermometer for Tanks & Rooms https://gainexpress-dealer.com/products/th-9000 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/TH-9000_preview.jpg?v=1493965156 TH-9000 One 1 Second Digital Instant Ear Thermometer Baby Adult https://gainexpress-dealer.com/products/tds-1392 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/TDS-1392_preview.jpg?v=1493965191 TDS-1392 0~1999 PPm (mg/L) Range Digital TDS Meter + Monitor + Power Adaptor https://gainexpress-dealer.com/products/tds-139 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/TDS-139_preview.jpg?v=1493965201 TDS-139 Digital Pen Type TDS / Conductivity / Hydroponics Meter 0-1999 PPm https://gainexpress-dealer.com/products/t95 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/files/7-gain-express-gainexpress-EMF-meter-T95-whole_984_1024x1024_c1c7320f-4420-45e6-aafc-1530ebb606b6.jpg?v=1685608719 T95 Digital 3-AXIS EMF RF Radiation ElectroSmog Power Meter Tester https://gainexpress-dealer.com/products/t92 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gain-express-gainexpress-EMF-meter-T92-preview_1600x1600_b0871fb0-573f-4386-83ec-1385c8123d6f.jpg?v=1594290737 T92 3-Axis Gauss EMF ELF Meter Detector, Electromagnetic Field Radiation 20/ 200/ 2000 mG & uT https://gainexpress-dealer.com/products/t91 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-gain-express-EMF-meter-T91-preview.jpg?v=1624592979 T91 Gauss EMF ELF Meter Detector Electromagnetic Field mG https://gainexpress-dealer.com/products/t206 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/files/T206A-preview.jpg?v=1732250279 T206 Solar Power Meter BTU/(ft2*h) W/m2 Radiation Energy Cell Tester https://gainexpress-dealer.com/products/t013003wx_4m 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/T013003WX_4M_preview.jpg?v=1493965272 T013003WX_4M Wireless WiFi Endoscope Snake Scope Borescope Camera Android iPad 4M Cable https://gainexpress-dealer.com/products/t013003wx 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/T013003WX_1M_preview.jpg?v=1493965281 T013003WX WiFi Android iPhone Endoscope Borescope 9.8mm Camera 1M Cable https://gainexpress-dealer.com/products/srt-6210 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/gainexpress-gain-express-surface-roughness-meter-SRT-6210-preview.jpg?v=1664167043 SRT-6210 Digital Surface Roughness Tester 4 Parameters (Ra, Rz, Rq, Rt) https://gainexpress-dealer.com/products/srt-6200 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-gain-express-surface-rought-meter-SRT-6200-preview_1024x1024_692f0db3-2bdf-4259-9870-9f7bd1f3e51f.jpg?v=1663236629 SRT-6200 Surface Roughness Tester 2 Parameters (Ra, Rz) https://gainexpress-dealer.com/products/sns-orp99720 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/ORP-7720.jpg?v=1493965310 SNS-ORP99720 optional ORP electrode for M0199720 https://gainexpress-dealer.com/products/sns-8690 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/optional-electrode-ng-869-0.jpg?v=1493965312 SNS-8690 Optional Replaceable Electrode for Waterproof Digital PH meter Temperature (869-0) https://gainexpress-dealer.com/products/sns-8689 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-gain-express-sensor-SNS-868-9-preview.jpg?v=1574154374 SNS-8689 Optional Replaceable Electrode with Cap for pH Temperature Pen Meter (868-9) https://gainexpress-dealer.com/products/sns-718s 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/SNS-718S_preview.jpg?v=1493965337 SNS-718S Optional Extra Wireless 60M Sonar Sensor for Fish Finder Items https://gainexpress-dealer.com/products/sm-852b 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/files/1-gain-express-gainexpress-Multimeter-SM-852B-preview.jpg?v=1757056617 SM-852B 3 Phase Sequence Rotation Indicator Tester Checker https://gainexpress-dealer.com/products/slm-814cd 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/SLM-814CD_set.jpg?v=1493965347 SLM-814CD Digital Sound Level Meter Decibel Logger 40~130dB USB & CD https://gainexpress-dealer.com/products/slm-814 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/SLM-814_set.jpg?v=1493965354 SLM-814 Digital Sound Pressure Level Meter Noise Decibel 130 dB https://gainexpress-dealer.com/products/gm-1357 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/SL1357_set.jpg?v=1493965383 GM-1357 30~130 dB Digital Sound Pressure Level Noise Decibel Meter Tester https://gainexpress-dealer.com/products/sl-5868p-bt 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/files/1-gain-express-gainexpress-Sound-level-meter-SL-5868P-BT-preview.jpg?v=1739781015 SL-5868P-BT Professional Sound Level Meter 30~130dB CD Software & Bluetooth https://gainexpress-dealer.com/products/sl-5868p-cd 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/gain-express-gainexpress-Sound-level-meter-SL-5868P-_preview_1600x1600_d98eb7a7-37d7-4b24-a8f0-fd8d60d8e509.jpg?v=1562827081 SL-5868P-CD Sound Level Meter with RS-232C Software CD https://gainexpress-dealer.com/products/sl-1351 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/SL-1351_preview.jpg?v=1493965396 SL-1351 Digital LCD Monitor Sound Noise Level Meter 30~130dBA Decibel https://gainexpress-dealer.com/products/sk-30 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gain-express-gainexpress-Health-and-Fitness-SK-30-preview.jpg?v=1675393045 SK-30 Skin & Facial Face Moisture Analyzer Monitor Tester LCD https://gainexpress-dealer.com/products/s08s613b_2s 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/S08S613B_2S_previewdhgate.jpg?v=1493965414 S08S613B_2S Indoor/Outdoor Wireless Digital Weather Forecast Station Humidity Temperature RCC Clock Calendar with 2 sensors https://gainexpress-dealer.com/products/s08s608b_3s 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/S08S608B_3S_preview.jpg?v=1493965424 S08S608B_3S Indoor Outdoor Weather Forecast Station Temperature RCC Clock Calendar with 3 sensors https://gainexpress-dealer.com/products/s08s608b_2s 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/S08S608B_2S_preview.jpg?v=1493965434 S08S608B_2S Wireless Weather Forecast Station Indoor Outdoor Temperature Humidity RCC Clock with 2 sensors https://gainexpress-dealer.com/products/s08s608b_1s 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/S08S608B_1S_preview.jpg?v=1493965455 S08S608B_1S Digital Wireless Indoor/Outdoor Weather Station Temperature Humidity RCC Clock https://gainexpress-dealer.com/products/rsg-100atc 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/RSG-100ATC_preview.jpg?v=1493965498 RSG-100ATC Handheld 0-32% ATC Brix & Beer Refractometer Sugar Wine Wort SG https://gainexpress-dealer.com/products/cdc-az 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/CDC-AZ.jpg?v=1493965499 CDC-AZ RS232 CD Software and USB Cable https://gainexpress-dealer.com/products/rhwn-25atcbr 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/RHWN-25ATCBr_preview.jpg?v=1601365084 RHWN-25ATCBr 0-25% ATC New Alcohol Refractometer (0-25%VOL, 0-40%Brix) https://gainexpress-dealer.com/products/rhsn-10atc 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/RHSN-10ATC_preview.jpg?v=1493965570 RHSN-10ATC New Handheld 0-10% ATC Salinity Refractometer https://gainexpress-dealer.com/products/rhs-10atc 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/RHS-10ATC_preview.jpg?v=1493965613 RHS-10ATC Handheld 0-10% ATC Salinity Refractometer https://gainexpress-dealer.com/products/rhbn-90atc 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gain-express-gainexpress-refractometer-RHBN-90ATC-preview_1024x1024_44dfd031-892f-48f2-9c5e-40fb37974906.jpg?v=1550048360 RHBN-90ATC New Handheld 58~90% ATC Honey Refractometer Water Brix Baume with ATC https://gainexpress-dealer.com/products/rhbn-32atc 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/RHBN-32ATC_preview.jpg?v=1493965669 RHBN-32ATC New 0-32% ATC Handheld Brix Refractometer https://gainexpress-dealer.com/products/rhb-32atc 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/RHB-32ATC_preview.jpg?v=1493965740 RHB-32ATC Brix Refractometer with ATC, 0-32% Brix in 0.2% division, for brandy, beer, fruits, Cutting Liquid, CNC, Vegetables, Juices, Soft Drinks https://gainexpress-dealer.com/products/rhb-10atc 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/RHB-10ATC_preview.jpg?v=1493965775 RHB-10ATC Portable 0-10% Brix Refractometer Fruit Vegetable Juice Wine Maple Sap https://gainexpress-dealer.com/products/rhan-200atc 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/RHAN-200ATC_preview.jpg?v=1493965788 RHAN-200ATC New Handheld 200ATC °C Antifreeze/Battery/Cleaning Fluid Refractometer https://gainexpress-dealer.com/products/rhan-100atc 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/RHAN-100ATC_preview.jpg?v=1493965807 RHAN-100ATC New °F Antifreeze/Battery/Cleaning Fluid 100ATC Refractometer https://gainexpress-dealer.com/products/rha-701atc 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/RHA-701_preview2.jpg?v=1493965824 RHA-701ATC Car Adblue Antifreeze Battery Windshield Fluid Refractometer https://gainexpress-dealer.com/products/rf-707 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/RF-707_preview.jpg?v=1493965849 RF-707 Wireless Floating Swimming Pool Thermometer 10~60 °C (14 ~ 140 °F) Range Digital https://gainexpress-dealer.com/products/r01aok-5019 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/R01AOK-5019_whole_grande_9e3b7d7a-009f-4d97-bb8f-08ce62989417.jpg?v=1493965870 R01AOK-5019 Weather Station DCF77 RCC Indoor Outdoor Thermometer RH https://gainexpress-dealer.com/products/r01aok-5018b 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/AOK-5018B_preview_grande_b96a480e-47d5-44f6-82a4-310820dde587.jpg?v=1493965895 R01AOK-5018B Digital Wireless Indoor Outdoor Weather Station Thermometer https://gainexpress-dealer.com/products/pm1208m_steel 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/PM1208_steel_preview.jpg?v=1493965915 PM1208M_steel Gamma Master II Nuclear Gamma Radiation Detector Dosimeter Watch with Geiger-Muller Tube Sensor https://gainexpress-dealer.com/products/pm1208m_leather 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/PM1208_leather_whole.jpg?v=1493965928 PM1208M_leather Gamma Master II Leather Strap GAMMA RADIATION WATCH https://gainexpress-dealer.com/products/pht-026 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/PHT-026_preview.jpg?v=1493965964 PHT-026 6-in-1 Multi-Function Meter Tester EC CF TDS PH °C °F https://gainexpress-dealer.com/products/phs-3385 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gain-express-gainexpress-pH-meter-PHS-3385-preview.jpg?v=1583739091 PHS-3385 Waterproof pH Meter 2.1 - 10.8pH Dipstick https://gainexpress-dealer.com/products/ph868-1 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/files/1-gain-express-gainexpress-PH-meter-868-1-preview.jpg?v=1731404640 PH868-1 Waterproof pH meter w/ Temperature + Auto Calibration https://gainexpress-dealer.com/products/ph-803 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-gain-express-ph-meter-PH-803-preview_1024x1024_af2ce221-36ad-45a6-afca-eef078a7e37a.jpg?v=1539051308 PH-803 DIGITAL PH ORP (2 in 1) CONTROLLER + ELECTRODES + CO2 & O3 Relay 110V/220V https://gainexpress-dealer.com/products/ph-303 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/PH-303_preview-web.jpg?v=1493966033 PH-303 2-in-1 Digital pH & ORP Controller + Electrodes Industrial Type https://gainexpress-dealer.com/products/ph-301 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/PH-301_preview.jpg?v=1493966054 PH-301 DIGITAL PH CONTROLLER + BNC ELECTRODE 220V or 110V CO2 https://gainexpress-dealer.com/products/ph-251 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/PH-251_preview.jpg?v=1493966066 PH-251 New pH Meter + Adaptor + Replaceable Electrode https://gainexpress-dealer.com/products/ph-203 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/PH-203_whole.jpg?v=1493966083 PH-203 Digital 2-in-1 pH ORP mV CO2 Controller Meter 0.00~14.00PH Range https://gainexpress-dealer.com/products/ph-201 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/PH-201_preview.jpg?v=1493966098 PH-201 Digital pH Controller + Electrode + Solutions 110V or 220V https://gainexpress-dealer.com/products/ph-032 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/PH-032_preview.jpg?v=1493966105 PH-032 Waterproof pH Meter w/ replaceable pH Electrode https://gainexpress-dealer.com/products/ozx-300at 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/OZX-300AT_preview.jpg?v=1596541765 OZX-300AT O3 Generator w/ Built-in Air Pump Timer, Ozone Output 500mg/hr https://gainexpress-dealer.com/products/oz-30n 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/OZ-30N_preview.jpg?v=1493966171 OZ-30N 200mg/h Ozone Generator w/ 220V, Low Power Consumption https://gainexpress-dealer.com/products/cdc-sl814cd 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/SLM-814CD_USB-cable.jpg?v=1493966178 OPTIONAL Software CD & USB Cable for Sound Level Meter ( CDC-SL814CD ) https://gainexpress-dealer.com/products/glass-gx480 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/GLASS-GX480.jpg?v=1493966179 Optional Frosted Glass Diffuser for Microscope Ring Light ( GX-480) https://gainexpress-dealer.com/products/ndl-060n 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gain-express-gainexpress-Dental-Loupe-NDL-060N-Preview_1024x1024_a9bcfea9-117c-4c5c-b26b-8bda0adcb24f.jpg?v=1535687662 NDL-060N Nickel Alloy 6.0x Frame Dental Surgical Medical Loupes Dentistry https://gainexpress-dealer.com/products/ndl-040n 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gain-express-gainexpress-Dental-Loupe-NDL-040N-preview_1024x1024_b5b37d7a-779f-4730-abc6-989557607cc0.jpg?v=1535687534 NDL-040N Nickel Alloy 4.0x Frame Dental Surgical Medical Loupes Dentistry https://gainexpress-dealer.com/products/ndl-035n 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gain-express-gainexpress-Dental-Loupe-NDL-035N-preview_1024x1024_566666a1-5758-47ae-aabb-96b98f5034ee.jpg?v=1535687280 NDL-035N Nickel Alloy 3.5x Frame Dental Surgical Medical Loupe https://gainexpress-dealer.com/products/ndl-025n 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gain-express-gainexpress-Dental-Loupe-NDL-025N-preview_1024x1024_8f0979bc-1c9d-4320-abf0-257540490b5b.jpg?v=1535687032 NDL-025N Nickel Alloy 2.5x Frame Dental Surgical Medical Loupes https://gainexpress-dealer.com/products/nd-9 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-gain-express-sound-level-meter-ND9-preview.jpg?v=1653043108 ND-9 Sound Level Meter Calibrator 94db & 114db ±0.3db IEC942 https://gainexpress-dealer.com/products/n04wf200_hd_3m 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/N04WF200_HD_3M_preview.jpg?v=1493966238 N04WF200_HD_3M HD WiFi 8.5mm Endoscope Borescope iPad IPhone Android iOS +3M Cable https://gainexpress-dealer.com/products/n04nts-200_5m 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/N04NTS-200_preview.jpg?v=1493966263 N04NTS-200_5M Detachable 3.5" LCD Inspection Camera 8.2mm Endoscope Borescope + 5M cable https://gainexpress-dealer.com/products/n03nf-868 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/N03NF-868_preview.jpg?v=1493966355 N03NF-868 Cable Tracker Phone Line Tester BNC Network Finder USB RJ11 RJ45 https://gainexpress-dealer.com/products/n03nf-838 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/N03NF-838_preview.jpg?v=1493966372 N03NF-838 Network Cable Tester RJ45 RJ11 BNC 1394 Line Phone Wire Tracker https://gainexpress-dealer.com/products/n03nf-8208 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-gain-express-cable-tester-N03NF-8208-preview.jpg?v=1564655710 N03NF-8208 Network LAN Cable Tester Wire Tracker Tracer Length https://gainexpress-dealer.com/products/n03nf-8108m 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/N03NF8108-M_preview.jpg?v=1493966396 N03NF8108-M Network LAN Coaxial Wire Length Tester w/ 8 Remote Identifier https://gainexpress-dealer.com/products/n03nf-806r 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/N03NF-806R_preview1.jpg?v=1493966411 N03NF-806R Network LAN or Telephone Cable Wire Tracker Open Circuit Tester https://gainexpress-dealer.com/products/n03nf-388 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-gain-express-cable-tester-NF-388B-preview_1024x1024_64fa65f0-a400-48f9-a9a7-17d1721c6fd1.jpg?v=1624514723 N03NF-388B Multipurpose Network LAN Cable Tester w/ 8 far-end test jacks https://gainexpress-dealer.com/products/n03nf-308 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/N03NF-308_preview1.jpg?v=1493966496 N03NF-308 Multipurpose Network Cable Tester Hunt Sort E5 E6 RJ45 RJ11 https://gainexpress-dealer.com/products/n-7202 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/N-7202_preview.jpg?v=1493966507 N-7202 Desktop LED light for Polariscope / Darkfield Loupe https://gainexpress-dealer.com/products/mfd500b 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/MFD500B_preview.jpg?v=1493966537 MFD500B 0-9999mm Mitech Digital Ultrasonic Flaw Detector Defectoscope DAC AVR Steel Velocity https://gainexpress-dealer.com/products/mfd350b 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/MFD350B_preview.jpg?v=1493966586 MFD350B 0-6000mm Mitech Digital Ultrasonic Flaw Detector Defectoscope DAC AVR https://gainexpress-dealer.com/products/mdn-814 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/MD-N814-_p.jpg?v=1493966594 MDN-814 Wood Moisture Meter Tester, 4 Pin, 5% - 40%, NEW DESIGN https://gainexpress-dealer.com/products/md-814 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/MD-814_pre.jpg?v=1493966599 MD-814 Digital 4-Pin Wood Moisture Meter (5%~40%) https://gainexpress-dealer.com/products/mc-7825ps 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gain-express-gainexpress-Moisture-meter-MC-7825PS-preview.jpg?v=1672828645 MC-7825PS 2-in-1 Scanner & Pin Type Moisture Meter https://gainexpress-dealer.com/products/mc-7825g 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gain-express-gainexpress-Moisture-meter-MC-7825G-Preview.jpg?v=1672829804 MC-7825G Digital Moisture Meter for wide range of grains https://gainexpress-dealer.com/products/mc-7821 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/files/MC-7821-preview.jpg?v=1745318507 MC-7821 4-type Grain Moisture & Temperature (Celsius & Fahrenheit) Meter https://gainexpress-dealer.com/products/mc-7806 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/gain-express-gainexpress-Moisture-meter-MC-7806-preview1.jpg?v=1672831330 MC-7806 Digital Moisture Meter & Thermometer, Wood Cotton Paper https://gainexpress-dealer.com/products/ma215 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/MA215.jpg?v=1493966660 MA215 Professional Digital Differential Air Pressure Manometer Gauge https://gainexpress-dealer.com/products/m0198855 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/M0198855_preview.jpg?v=1493966699 M0198855 Digital K type Thermocouple Thermometer With Air Ambient Temperature and Relative Humidity (RH) Made in Taiwan https://gainexpress-dealer.com/products/m0198850 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/M0198850_preview.jpg?v=1493966715 M0198850 Pen-type K type Bead Wire Thermocouple Thermometer Meter Made in Taiwan https://gainexpress-dealer.com/products/m0198837 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/M0198837_preview.jpg?v=1493966743 M0198837 Digital Thermocouple Thermometer Meter Single K-Type Input https://gainexpress-dealer.com/products/m0198653 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/98653_whole.jpg?v=1493966751 M0198653 USB Thermo-Hygro-Anemometer Dew Point Wet bulb Heat Index Wet Bulb Global Temp https://gainexpress-dealer.com/products/m0198583 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/M0198583_Wriststip1.jpg?v=1493966766 M0198583 Patented Mini USB Temperature & Humidity Datalogger TAIWAN MADE https://gainexpress-dealer.com/products/m0198537 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/M0198537_preview.jpg?v=1493966774 M0198537 Indoor Carbon Dioxide (CO2) Monitor & Datalogger Made in Taiwan https://gainexpress-dealer.com/products/m0198195 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/M0198195_whole_80130134-5505-47c9-8d1e-0e1d1856cb6d.jpg?v=1493966787 M0198195 Handheld EMF/RF (3-axis Gauss Meter) Field Strength Meter 50MHz to 3.50GHz https://gainexpress-dealer.com/products/m0198191 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/M0198191_set.jpg?v=1493966795 M0198191 EMF ELF Magnetic Field Gauss Meter 30~300Hz TAIWAN MADE https://gainexpress-dealer.com/products/m0198171 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/M0198171_preview.jpg?v=1493966805 M0198171 Digital USB Interface Formaldehyde HCHO Thermo-hygrometer Meter Made in Taiwan https://gainexpress-dealer.com/products/m0198138 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/M0198138_preview_newweb.jpg?v=1493966815 M0198138 Carbon Dioxide Temperature Humidity RH TWA STEL CO2 Monitor https://gainexpress-dealer.com/products/m0198137 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/M0198137_preview1.jpg?v=1493966825 M0198137 Carbon Dioxide Temperature Humidity RH CO2 Monitor Taiwan Made https://gainexpress-dealer.com/products/m0198132s 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/M0198132S_preview.jpg?v=1493966833 M0198132S Digital 3in1 CO2 Thermo-hygrometer Logger Made in Taiwan https://gainexpress-dealer.com/products/lxa-318 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/LXA-318_whole.jpg?v=1493966858 LXA-318 Digital Lux Light Meter 100,000 Lux Luxmeter Photo LCD https://gainexpress-dealer.com/products/lx-1330b 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/LX-1330B_preview_4000x.progressive_da8dce4b-78b4-457f-b8fa-6948801ca7a4.jpg?v=1563185455 LX-1330B Digital Light Level Meter 200,000 Lux Photo Camera https://gainexpress-dealer.com/products/lx-1020b 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/LX1020B_preview.jpg?v=1493966907 LX-1020B Digital Light Meter 100,000 Lux LCD Lab Photo Camera https://gainexpress-dealer.com/products/lx-1010b 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/LX1010B_preview.jpg?v=1493966926 LX-1010B Digital Light Lux Meter 0 - 50,000 Lux Camera Photo https://gainexpress-dealer.com/products/kd-200 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/756156418_801.jpg?v=1493966945 KD-200 80 LED Camera Microscope Ring Light CE (warm white 70mm max diameter) https://gainexpress-dealer.com/products/k01kc-330b 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/K01KC-330B_whole.jpg?v=1493966966 K01KC-330B USB Digital Sound Level Datalogger 32K Memory https://gainexpress-dealer.com/products/k01kc-084z 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/K01KC-084Z_preview.jpg?v=1493967001 K01CK-0048G Auto Self Leveling Laser Level Marker 3 Beam Line Plumb https://gainexpress-dealer.com/products/jem-ii 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/files/1-gain-express-gainexpress-Diamond-Tester-JEM-II-preview.jpg?v=1701419928 JEM-II Diamond Tester with Ultraviolet (UV) Light https://gainexpress-dealer.com/products/jdt-08 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/JDT-08_preview.jpg?v=1493967036 JDT-08 3in1 LCD Stud Detector Metal Voltage Cable Wood Finder https://gainexpress-dealer.com/products/ir-g1650 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/IR-G1650_shopify.jpg?v=1493967154 IR-G1650 Digital 50:1 Pro IR Thermometer 1650°C 3002°F Adjustable https://gainexpress-dealer.com/products/ir-g1350 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/IR-G1350_preview.jpg?v=1493967174 IR-G1350 Digital 50:1 IR Laser Thermometer 0.1~1 EM Pyrometer 2462 °F https://gainexpress-dealer.com/products/ir-g1150a 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-gain-express-thermometer-IR-G1150A-1preview_1024x1024_73b13dfd-3914-42ad-83cd-96fbaaa3c369.jpg?v=1541749561 IR-G1150A 50:1 Non-contract IR Infrared Laser Thermometer -30~1150°C/ -22~2102°F 0.1~1EM Pyrometer https://gainexpress-dealer.com/products/ir-g1150 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/IR-G1150_preview.jpg?v=1493967205 IR-G1150 Digital 20:1 Professional Infrared Thermometer 0.1~1EM Pyrometer https://gainexpress-dealer.com/products/ir-872d 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/IR-872D_preview.jpg?v=1493967228 IR-872D 50~1150°C -58~2102°F 20:1 Infrared IR Laser Thermometer https://gainexpress-dealer.com/products/ir-807 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/IR-807_preview.jpg?v=1493967263 IR-807 Digital Hygrometer Temperature Humidity Meter LCD Clock https://gainexpress-dealer.com/products/ir-280 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/IR-280_preview.jpg?v=1493967272 IR-280 12:1 Digital Infrared IR Non-Contact Thermometer Laser -50~280 °C (-58~572 °F) Range https://gainexpress-dealer.com/products/ht-6510d 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/files/HT-6510D-preview1.jpg?v=1744106992 HT-6510D Digital Hardness Durometer Meter Tester Plastic Shore D https://gainexpress-dealer.com/products/ht-6510c 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/files/HT-6510C-preview.jpg?v=1740657653 HT-6510C Digital Hardness Durometer Tester for Plastic, Middle Hard Rubber Materials Shore C https://gainexpress-dealer.com/products/ht-6510a 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/files/HT-6510A-preview.jpg?v=1740738847 HT-6510A Digital Hardness Durometer Meter Tester Rubber Shore A https://gainexpress-dealer.com/products/hs-72 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/gain-express-gainexpress-LED-Ring-Lights-HS-72_preview_1600x1600_92fa8ff3-68c2-4a76-b019-f2185016d6c5.jpg?v=1560492667 HS-72 Ring Light 62mm 72 LED Microscope Camera Illuminator Flash Lens https://gainexpress-dealer.com/products/hm-6561 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gain-express-gainexpress-hardness-meter-HM-6561-Preview.jpg?v=1590118166 HM-6561 Portable Digital Rebound Leeb Hardness Tester Gauge Meter https://gainexpress-dealer.com/products/orp-1 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gain-express-gainexpress-ORP-meter-GX-ORP1-preview.jpg?v=1567750806 ORP-1 ORP Redox Electrode, BNC Type Connector Replacement Probe for Tester Meter Monitor Controller https://gainexpress-dealer.com/products/gx-860 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-ring-light-GX-860-preview.jpg?v=1644386269 GX-860 144 LED Microscope Camera Ring Light (4zone control 61mm MaxDia) https://gainexpress-dealer.com/products/gx-480 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/468140243_724.jpg?v=1493967402 GX-480 48 LED Microscope Camera Ring Light Illuminator (60mm max dia) https://gainexpress-dealer.com/products/gx-380 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/GX-380_preview.jpg?v=1493967430 GX-380 48 LED Camera Microscope Ring Light (White Bulbs, 74mm max dia) https://gainexpress-dealer.com/products/gva-505b 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/468597369_954.jpg?v=1493967477 GVA-505B R/C/D Auto Scan Tweezers Digital Multimeter Meter SMD https://gainexpress-dealer.com/products/gva-503 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/V01VA503_fb.jpg?v=1493967489 GVA-503 Resistance Capacitance Diode Test Multimeter Meter R/C SMD https://gainexpress-dealer.com/products/gva-19 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/469406292_841.jpg?v=1493967514 GVA-19 5-in-1 Multimeter with LUX, dB, °C, RH, AC, DC https://gainexpress-dealer.com/products/gs-ps1 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-gain-express-Polariscope-GS-PS1-preview_1024x1024_93b5d01a-637d-4391-ae73-35b41c45ce66.jpg?v=1534755633 GS-PS1 Desktop Standing Polariscope Built-in LED Rotatable Platform 2 Glass Filter 110V or 220V https://gainexpress-dealer.com/products/gr-701b 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gain-express-gainexpress-Gem-Refractometer-GR-701B-preview_1.jpg?v=1673331600 GR-701B 0.01 nD Scale Division Gem Refractometer w/ Built-in LED Light + RI Oil https://gainexpress-dealer.com/products/gr-601 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/GR-601_preview.jpg?v=1493967578 GR-601 2in1 Light Source Gem Refractometer Gemstone New Design 1.30~1.81 RI range https://gainexpress-dealer.com/products/gm31 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/GM31_preview.jpg?v=1493967629 GM31 Mini 30X Jeweler Loupe Magnifier + LED & UV light 21mm lens https://gainexpress-dealer.com/products/gm21 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/GM-21_preview.jpg?v=1493967647 GM21 Mini Jeweler Loupe 20X Magnifier + LED & UV light 21mm lens https://gainexpress-dealer.com/products/gm11 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/files/GM11-preview.jpg?v=1751278117 GM11 Mini 10X Jeweler Loupe Magnifier + LED & UV light, 21mm lens https://gainexpress-dealer.com/products/gm10 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gain-express-gainexpress-Jeweller-Loupe-GM10-preview.jpg?v=1679388073 GM10 Mini 10X Jeweler Loupe Magnifier + 6 LED light, 21mm lens https://gainexpress-dealer.com/products/glass-hs72 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/GLASS-HS72.jpg?v=1493967703 GLASS-HS72 https://gainexpress-dealer.com/products/gl-01_2 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/GL-01_2-preview.jpg?v=1624423268 GL-01_2 Refractive Index Fluid for Gem Refractometers (2 vials, approx. 3ml/vial) https://gainexpress-dealer.com/products/gd-7291 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/files/gain-express-gainexpress-Leak-Detector-GD-7291_whole_444_1024x1024_7762c833-d555-4a37-b2fb-83e57035e09b.jpg?v=1710148928 GD-7291 Precision Combustible Methane Propane Gas Leak Detector https://gainexpress-dealer.com/products/gar-709 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/578421292_134.jpg?v=1493967758 GAR-709 Insulation Volt Resistance Tester Meter 0~20G 50~1000V https://gainexpress-dealer.com/products/ff-918 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/FF-918_preview.jpg?v=1493967843 FF-918 2in1 Wired 100M Wireless 40M Fish Finder Fishfinder w/ Bottom Contour Display https://gainexpress-dealer.com/products/ff-718 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/FF-718_preview_large_4be9643a-1176-489b-a432-42731cd17a2b.jpg?v=1493967896 FF-718 Wired 80M Professional Fish Finder w/ Sonar Transducer https://gainexpress-dealer.com/products/ff3308-8 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gain-express-gainexpress-Fish-Finder-FF-3308-8-preview1.jpg?v=1516849709 FF-3308-8 LUCKY Portable Underwater Fishing & Inspection Camera Video System Kit w/ 3.5inch Handheld Color Live-view Display Monitor, 20m Cable, Cam with Wide Angle Lens and Far-infrared LED, CMD sensor Fish Finder Sea Locator https://gainexpress-dealer.com/products/e04-021 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/gain-express-gainexpress-Water-Level-E04-021-previ.jpg?v=1592554950 E04-021 Electronic Water Level Alarm w/ Power Lamp & Groove https://gainexpress-dealer.com/products/e04-020 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/E04-020_preview.jpg?v=1493968017 E04-020 Wireless Mini Water Leak Alarm >80dB Sensor https://gainexpress-dealer.com/products/e04-019 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gain-express-gainexpress-thermometer-E04-019-preview1.jpg?v=1541587294 E04-019 Digital Thermo-Hygrometer Thermometer Measure Dew Point & Relative Humidity RH https://gainexpress-dealer.com/products/e04-017 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/gain-express-gainexpress-Car-tools-and-Equipment-E_2.jpg?v=1592554213 E04-017 Digital 2-in-1 Car Motor Tire Pressure Gauge + Tire Veins Depth https://gainexpress-dealer.com/products/e04-016 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/gain-express-gainexpress-Car-tools-and-Equipment-E_1.jpg?v=1592553360 E04-016 Car Automotive Vehicular Battery Tester Checker 6V & 12V https://gainexpress-dealer.com/products/e04-015 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gain-express-gainexpress-Moisture-meter-E04-015-Preview_1024x1024_dd9561c3-0775-434e-ab42-f76c97b8ac9c.jpg?v=1559197368 E04-015 Digital Wood & Building Material Moisture Meter Tester w/ LED Indicator, Sawn Timber Cardboard Paper Mortar Concrete Plaster Environment Temperature, for Woodworking Woodworker Handcrafter https://gainexpress-dealer.com/products/e04-014 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/E04-014_preview_759_1024x1024_4b519fdb-b8bf-4e14-a22d-37f032da959c.jpg?v=1592551168 E04-014 Digital Clamp Meter DC AC Audible Continuity Tester https://gainexpress-dealer.com/products/e04-012 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/E04-012_set.jpg?v=1493968120 E04-012 Digital Multimeter DCV ACV OHM ACA Diode Temperature Tester https://gainexpress-dealer.com/products/e04-011_eu 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gain-express-gainexpress-Circuit-Breaker-Finder.jpg?v=1592550519 E04-011_EU Automatic Circuit Breaker Finder Receiver Transmitter Fuse 220V https://gainexpress-dealer.com/products/e04-010 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/gain-express-gainexpress-Car-tools-and-Equipment-E04-010-preview.jpg?v=1564653619 E04-010 Electronic Stethoscope Car Truck Automotive Noise Sensor Finder https://gainexpress-dealer.com/products/e04-007 2026-05-06T09:44:46+08:00 daily 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LED Indicator & 180° Foldable Testing Rod https://gainexpress-dealer.com/products/e04-003 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gain-express-gainexpress-EMF-Meter-E04-003-preview_1024x1024_d85a8b30-ad7a-4365-b2ec-d4ef9e41eecf.jpg?v=1553164128 E04-003 Ultrasonic Leak detector & Transmitter Detects Air Water Dust https://gainexpress-dealer.com/products/e03hld-200 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/568692226_646.jpg?v=1493968301 E03HLD-200 Handheld Halogen Leak Detector 305mm probe length Negative Corona Sensor Type with Dual-color LED Indicator https://gainexpress-dealer.com/products/dt-6236b 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-gain-express-tachometer-DT-6236B-pre.jpg?v=1592547329 DT-6236B 2in1 Digital Laser Photo Tachometer Non & Contact RPM https://gainexpress-dealer.com/products/dt-2350pa 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-gain-express-Stroboscope-DT-2350PA-p.jpg?v=1592799331 DT-2350PA Digital Handheld Stroboscope with 50-12,000 FPM 110V/220V https://gainexpress-dealer.com/products/dt-2236c 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-gain-express-tachometer-DT-2236C-preview.jpg?v=1571296779 DT-2236C 2in1 Digital Contact and Non-Contact Tachometer Laser / Photo m/min RPM Auto Ranging https://gainexpress-dealer.com/products/dm1100 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1.jpg?v=1493968467 DM1100 3-in-1 Digital 2 Pin Wood Building Hard Material Moisture Meter https://gainexpress-dealer.com/products/dm-6234p 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/DM-6234P_preview_631_1024x1024_b1599e93-1365-4174-9aa5-f5b401ea4101.jpg?v=1592540882 DM-6234P Digital Laser Non-Contact Photo Tachometer RPM Measurer https://gainexpress-dealer.com/products/dlh-60 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-gain-express-dental-loupes-DLH-60-preview_1024x1024_f5dfe462-21f0-47b2-bca5-25a857949267.jpg?v=1546496170 DLH-60 Portable LED Head Light Lamp Medical Loupes https://gainexpress-dealer.com/products/dlg-88395 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/A01DLG-88395_USB_fb.jpg?v=1493968516 DLG-88395 Professional Humidity and Temperature USB Data Logger https://gainexpress-dealer.com/products/dlg-87799_sd 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/DLG-87799SD_preview.jpg?v=1493968531 DLG-87799_SD Professional Humidity and Temperature SD Data Logger https://gainexpress-dealer.com/products/dl-060 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gain-express-gainexpress-Dental-Loupe-DL-060-preview_1024x1024_90609b46-cbc9-4bcb-aa36-75b0c8a15cde.jpg?v=1535688518 DL-060 Titanium Frame 6.0x Dental Loupes Surgical Medical https://gainexpress-dealer.com/products/dl-035 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gain-express-gainexpress-Dental-Loupe-DL-035-preview_1024x1024_ede31052-9ff8-4bbd-bdd8-d7f3e2d71c7d.jpg?v=1535688234 DL-035 Titanium Frame 3.5x Dental Surgical Binocular Loupes https://gainexpress-dealer.com/products/dl-025 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gain-express-gainexpress-Dental-Loupe-DL-025-preview_1024x1024_15809aab-ec3b-43fe-8ca0-2cce2cd13b6c.jpg?v=1535688137 DL-025 Titanium 2.5x Frame Dental Surgical Binocular Loupes https://gainexpress-dealer.com/products/co98 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gain-express-gainexpress-CO2-meter-CO98-110V-preview---Copy.jpg?v=1568102644 CO98 CO2 Data Logger Temperature Humidity Monitor 9999ppm https://gainexpress-dealer.com/products/co7701 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gain-express-gainexpress-CO2-meter-CO7701-Preview_1024x1024_0a3d8027-237e-4e13-933a-919e3a7eb0f7.jpg?v=1527060632 CO7701 Carbon Monoxide CO Meter Tester Monitor Detector PPM https://gainexpress-dealer.com/products/c0599g_1m 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gain-express-endoscope-C0599G-1M-preview.jpg?v=1582789635 C0599G_1M Industrial 2.4"Recordable Video Photo Endoscope Borescope Inspection Camera https://gainexpress-dealer.com/products/cm213 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/CM-213_preview.jpg?v=1493968661 CM213 Digital AC Current Clamp Meter Multimeter Capacitance Ohm https://gainexpress-dealer.com/products/cm113 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/CM-113_preview.jpg?v=1493968690 CM113 Digital AC/DC Clamp Meter Multimeter Thermometer Ohm https://gainexpress-dealer.com/products/cm-8855fn 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/CM-8855FN_preview_342_1024x1024_317c142f-0d66-435e-a2b6-60c618106055.jpg?v=1592540508 CM-8855FN Paint Coating Thickness Gauge F/NF Probes Big LCD https://gainexpress-dealer.com/products/cm-8826fn 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/CM-8826FN_preview_387_1024x1024_c2b7759f-8ebb-406e-9783-de76f3f878a7.jpg?v=1592540208 CM-8826FN Paint Coating Thickness Meter Gauge with F & NF Probes https://gainexpress-dealer.com/products/cm-8825fn 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/CM-8825FN_preview_371_1024x1024_cb312124-d7d3-4793-896a-d03105d9d976.jpg?v=1592539951 CM-8825FN Digital Coating Thickness Meter, 0-1250um / 0-50mil + Built-in F & NF https://gainexpress-dealer.com/products/cm-8822 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/CM-8822_preview_444_1024x1024_b5531791-595e-45fe-b1fe-75c4aa55b7d0.jpg?v=1592539278 CM-8822 Digital Coating Thickness Meter 0-1000um/0-40mil + F & FN Probes https://gainexpress-dealer.com/products/cm-8821 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/CM-8821_preview.jpg?v=1493968787 CM-8821 Paint Coating Thickness Meter Gauge F Probe 1000µm https://gainexpress-dealer.com/products/clmg-7302 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/gain-express-gainexpress-Chelsea-Filters-CLMG-7300_df9460ca-f1eb-45c6-b4aa-754d0d5f1a36.jpg?v=1592474613 CLMG-7302 Foldable Ruby Filter Gem, identification tool for Emerald & Gemstones https://gainexpress-dealer.com/products/clmg-7300 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/gain-express-gainexpress-Chelsea-Filters-CLMG-7300.jpg?v=1592474346 CLMG-7300 Foldable Jadeite Filter for Gem, Emerald, Identification tools https://gainexpress-dealer.com/products/clmg-7208 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-gain-express-jeweller-tools-CLMG-720.jpg?v=1596107281 CLMG-7208 Heavy Duty New Calcite Dichroscope https://gainexpress-dealer.com/products/clmg-7206 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gain-express-gainexpress-Spectroscopes-CLMG-7206-preview.jpg?v=1568099388 CLMG-7206 55mm Handheld Durable Small Diffraction Spectroscope https://gainexpress-dealer.com/products/clmg-7204 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/gain-express-gainexpress-Spectroscopes-CLMG-7204-p.jpg?v=1596107859 CLMG-7204 Spectroscope - Prism Spectroscope, Big Size, Heavy Duty & Light https://gainexpress-dealer.com/products/clmg-7173_led 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/gainexpress-gainexpress-CLMG-7173-8_-preview_2.jpg?v=1603275220 CLMG-7173_LED Magnifier Scale Loupe 10x Magnification 8 LED Light 20mm Scale Chart & 25mm Field of View https://gainexpress-dealer.com/products/cl-400 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/files/1-gain-express-gainexpress-Fiber-Microscope-CL-400-preview.jpg?v=1687769766 CL-400 Hand-Held 400x Fiber Optical Microscope Inspection https://gainexpress-dealer.com/products/cl-200 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gain-express-gainexpress-Fiber-Microscope-CL-200-preview.jpg?v=1676366857 CL-200 Hand-Held 200x Fiber Optical Microscope Inspection https://gainexpress-dealer.com/products/cl-181 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gain-express-gainexpress-Jeweller-tools-CL-181-p.jpg?v=1592472166 CL-181 1.30 ~ 1.81 RI Range Gemological Refractometer + Index oil Flashlight Polarizing Lens https://gainexpress-dealer.com/products/cable-3m-vid99 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/3m-extension-cable.jpg?v=1493968936 CABLE-3M-VID99 3M Aluminum Extension Cable Video Inspection Camera Endoscope Borescope Snake Scope https://gainexpress-dealer.com/products/c05vid-099_1m_10mm 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/2.4-orange-10mm_preview.jpg?v=1493968994 C05VID-099_1M_10mm 2.4" LCD Portable Video Inspection Endoscope 10mm Camera 1m Cable Borescope https://gainexpress-dealer.com/products/c0599f_4m 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/99F_4M_preview.jpg?v=1493969074 C0599F_4M Handheld 2.4 Industrial Endoscope up to 360°Rotation Borescope + 4m Cable https://gainexpress-dealer.com/products/c0599f_1m 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/C0599F_1M_preview.jpg?v=1493969093 C0599F_1M Handheld Industrial Endoscope w/ 2.4" LCD & up to 360° Rotation Borescope https://gainexpress-dealer.com/products/c0599e_4m_8-5mm 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/C0599E_4m_8.5mm_preview.jpg?v=1493969114 C0599E_4M_8.5mm Industrial 3.5 Endoscope 8.5mm dia. Video & Sound Recording Borescope w/ 4M cable https://gainexpress-dealer.com/products/c0599e_1m_8-5mm 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/C0599E_1m_8.5mm_preview.jpg?v=1493969126 C0599E_1M_8.5mm Industrial 3.5" Endoscope 8.5mm dia. Video & Sound Recording Borescope w/ Mic SD 2GB https://gainexpress-dealer.com/products/c0599e_1m_5-5mm 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/C0599E_1m_5.5mm_preview.jpg?v=1493969134 C0599E_1M_5.5mm Industrial 3.5 Endoscope 5.5mm Camera Video & Sound Recording Borescope w/ Mic https://gainexpress-dealer.com/products/c0598am 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/C0598AM-black_preview1.jpg?v=1493969163 C0598AM USB Handheld Endoscope 7mm Camera head Borescope w/ 7" Android Monitor https://gainexpress-dealer.com/products/c0588dr_3m 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/C0588DR_2M_preview.jpg?v=1493969193 C0588DR_3M Industrial 2-Way Rotation Endoscope 3M with 5.5mm Camera Borescope https://gainexpress-dealer.com/products/c0588dr_1m 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/C0588DR_1M_preview.jpg?v=1493969204 C0588DR_1M Industrial Rotation Endoscope 1M with 5.5mm Camera Borescope https://gainexpress-dealer.com/products/ar-166_110v 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/AR-166_preview110.jpg?v=1493969239 AR-166_110V Electronic Ultrasonic Mouse Mosquito Repeller 50/60Hz https://gainexpress-dealer.com/products/ar-111_110v 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/AR-111B_preview110.jpg?v=1493969294 AR-111_110V Ultrasonic Mosquito Repeller Repellent Control with 25% off Discount https://gainexpress-dealer.com/products/am-4836v 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-gain-express-Anemometer-AM-4836V-preview.jpg?v=1680244399 AM-4836V Multi-function Thermo Anemometer with °C & °F https://gainexpress-dealer.com/products/am-4836c 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-gain-express-Anemometer-AM-4836C-preview.jpg?v=1590134308 AM-4836C Multi-function Thermo Anemometer CUP speed air Weather https://gainexpress-dealer.com/products/88598 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-gain-express-thermometer-88598-preview_1024x1024_a969aace-2556-468c-9852-2f049c2d0623.jpg?v=1617956534 88598 Digital 4 Channels K-type Thermocouple SD card Logger https://gainexpress-dealer.com/products/82152 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gain-express-gainexpress-Manometer-82152-preview.jpg?v=1590133100 82152 Digital Differential Air Pressure Manometer 15.000psi Gauge https://gainexpress-dealer.com/products/8803al_1m 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/8803AL_1M_preview.jpg?v=1493969434 8803AL_1M 3.5" Wireless 4 LED Inspection Camera 9mm Endoscope DVR 1M Cable https://gainexpress-dealer.com/products/8723 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gain-express-gainexpress-Moisture-meter-8723-preview_1024x1024_4eea06f0-1f23-412b-8443-6a032eeaebf9.jpg?v=1519116234 8723 Digital Air Thermo-Hygrometer / Psychrometer / Humidity Wet Bulb https://gainexpress-dealer.com/products/868-9 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-gain-express-PH-Meter-PH868-9-preview.jpg?v=1566549051 868-9 Waterproof Pen type pH 0-14pH Temperature Meter ATC Digital Tester, Thermometer, 1-Touch Multi-Calibration with Pouch, Auto Buffer Solution Recognition https://gainexpress-dealer.com/products/8090 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/8090_preview.jpg?v=1493969505 8090 Digital Non-contact Infrared & K-Type Digital Thermometer Thermocouple https://gainexpress-dealer.com/products/8060 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/8060_preview.jpg?v=1493969518 VA-8060 Digital K or J Type Thermocouple Thermometer, Dual-channel LCD Backlight Temperature Meter Tester with 2 extra Metal Probe https://gainexpress-dealer.com/products/8050 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/8050_preview_d18e5261-077f-4b11-9763-e211ada8ef5c.jpg?v=1493969544 VA-8050 Digital LCD Light FC Meter Tester Illuminance Gauge 0 ~ 30000 Lux & 0 ~ 2788.0ftc FTC with Max Min Hold Handheld Device CE marking https://gainexpress-dealer.com/products/8041 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gain-express-gainexpress-Thickness-Gauges-8041-preview_1024x1024_89196367-7e75-4098-9bbe-96425d3f1b06.jpg?v=1552456414 VA8041 Ultrasonic Thickness Meter Tester Gauge Measure 1.2~220 mm https://gainexpress-dealer.com/products/8040 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/8040_preview.jpg?v=1493969572 VA-8040 Moisture & Temperature Meter °C °F Wood Bricks Concrete Cement Lime Mortar CE Marking Dual Meter Tester https://gainexpress-dealer.com/products/8010 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/8010_preview.jpg?v=1493969605 VA-8010 Digital Air Temperature Humidity Meter Thermometer °C / °F Tester w/ Dew Point CE Marking LCD Display https://gainexpress-dealer.com/products/6520 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/6520_preview.jpg?v=1493969641 6520 Digital Infrared IR Laser Thermometer -50~500°C ( -58~932°F ) Spot-Ratio 8:1 https://gainexpress-dealer.com/products/510-160 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gain-express-gainexpress-Health-and-Fitness-510-160-preview.jpg?v=1590132196 510-160 Digital Body Measuring Fat Caliper Measure mm inch Tool Body Fat Tester, Body Fat Monitors for Health Monitoring https://gainexpress-dealer.com/products/560-10d 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/gain-express-gainexpress-Thickness-Gauges-560-10D-preeiw_60fe7ee7-923d-4d98-ab9f-2423a0825c52.jpg?v=1498287253 560-10D Shore D Digital Hardness Meter Durometer 0~100HD Pocket Size Tester with LCD Display https://gainexpress-dealer.com/products/835-1 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/gain_express_gainexpress_cond_meter_A018351_preview.jpg?v=1498287265 835-1 Dual Display Conductivity Temperature Meter, uS/mS, C/F, Auto Range, Multi Calibration Point https://gainexpress-dealer.com/products/560-10a 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/560-10A_preview_78930ad5-7bdc-4432-ab1f-ae70ec6a7db1.jpg?v=1530590310 560-10A Shore A Digital Hardness Meter Durometer 0~100HA, Rubber Tire https://gainexpress-dealer.com/products/710-110 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/files/1-gainexpress-gain-express-Battery-Tester-710-110-preview.jpg?v=1689836781 710-110 / BAT-377 Battery Tester Checker C AA AAA D N 9V 1.5V Button Cell Batteries Clear Bar Graph LCD Display Pocket Size https://gainexpress-dealer.com/products/digital-anemometer-thermometer-air-speed-temperature-meter-fb 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/8020_preview_45e8a604-79ef-4413-beac-ad45c13d7b97.jpg?v=1498287312 VA-8020 Digital Anemometer Thermometer, Air Speed Temperature Meter https://gainexpress-dealer.com/products/810-100 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/810-100_preview_2195abbf-2c10-498d-9145-4ca5897618c0.jpg?v=1498287328 810-100 Digital Bevel Box/ Inclinometer w/ Magnets & Always Upright Display https://gainexpress-dealer.com/products/810-100ss 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/gain-express-gainexpress-Angle-Finder-810-100SS-preview_851e5989-4ed8-4104-86ff-ecc05a311536.jpg?v=1498287363 810-100SS Level Bevel Box Digital Angle Finder Gauge Spirit Level/Bubble with Magnets, Inclinometer, Mini Protractor with Absolute, Relative & Always Upright Readings https://gainexpress-dealer.com/products/836-1 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/863-1_preview_58691a2a-e9d3-439d-868c-77433b128b86.jpg?v=1498287399 836-1 Digital Conductivity TDS 0~1999ppm 0~19.99ppt Meter, ATC, 0~1999µS 0~19.99mS C/F https://gainexpress-dealer.com/products/8403 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/8403-perview-new.jpg?v=1663667010 8403 Professional Digital Large LCD Dissolved Oxygen DO Meter Tester https://gainexpress-dealer.com/products/837-1 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/A01837-1_preview_7ec41032-57b5-40c2-bf7f-4e667a74c21d.jpg?v=1498287502 837-1 Salinity & Temp Meter, Pen Type Salt Water Quality Tester ATC NaCl 0~70 ppt for Saltwater, Hydroponics, Pool https://gainexpress-dealer.com/products/az8908 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/gain-express-gainexpress-Anemometer-8908-preview_28393186-6588-40a1-99ae-4227c8fc89a7.jpg?v=1498290348 AZ8908 Thermo Anemometer Temperature Windchill Air Velocity https://gainexpress-dealer.com/products/ag-0200bb 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/AG-0200BB_preview.jpg?v=1498290381 AG-0200BB Digital 360° (±180°) Bevel Box / Inclinometer with Magnets Protractor Angle Finder 0.1° Accuracy IP54 Rate https://gainexpress-dealer.com/products/ag-02lb 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/AG-02LB_preview.jpg?v=1498290403 AG-02LB Digital 360° Bevel Box / Inclinometer w/ Magnets & Spirit Level Angle Finder Large LCD Display https://gainexpress-dealer.com/products/ag-300d 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/AG-300D_preview.jpg?v=1498290433 AG-300D Digital 2-in-1 Angle Finder Meter Protractor Ruler 360° 600mm CE marking Digital LCD Display https://gainexpress-dealer.com/products/ag-82302 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/gain-express-gainexpress-Angle-Finder-AG-82302-preview_f4edf3d7-c761-4b00-ba4e-eab85800a241.jpg?v=1498290479 AG-82302 Digital Angle Finder / Protractor Tool with Spirit Level 0 ~ 360° Measuring Range 0.1° Accuracy https://gainexpress-dealer.com/products/ag-200d 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/gain-express-gainexpress-Angle-Finder-AG82305-200D-preview.jpg?v=1498290493 AG-200D Digital 2-in-1 Angle Finder Meter Protractor Ruler 360° 400mm Measure CE Marking LCD Display https://gainexpress-dealer.com/products/am-816 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-gain-express-Anemometer-AM-816-preview.jpg?v=1568977403 AM-816 Digital Wind Speed Gauge Sports Anemometer Thermometer https://gainexpress-dealer.com/products/am-8901 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/AM8901_preview1.jpg?v=1498290525 AM-8901 Digital Anemometer Wind Speed Meter Thermometer 0~45m/s https://gainexpress-dealer.com/products/ag-82413b 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/gain_express_gainexpress_Digital_Protractor_82413B_preview.jpg?v=1617797180 AG-82413B Digital Protractor Angle Finder Level Inclinometer Magnetic V-Groove 0~360 with Backlight IP65 https://gainexpress-dealer.com/products/7755 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/gain_express_gainexpress_CO2_meter_A017755_preview_c23f9bf0-0391-438a-bad9-132558fcdd36.jpg?v=1498290554 7755 Indoor Air Quality 9999ppm Digital Carbon Dioxide Temperature Humidity NDIR Sensor Monitor https://gainexpress-dealer.com/products/am-m010 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/gain_express_gainexpress_Anemometer_AM-M010_preview.jpg?v=1498290571 AM-M010 WeatherFlow iPhone Apple iOS Smartphone Weather Wind Air Speed Meter Anemometer Compact Size https://gainexpress-dealer.com/products/co22 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gain-express-gainexpress-CO2-Meter-CO22_US-preview_1024x1024_08750cea-47e6-4974-a6c9-eb5d61fe2c85.jpg?v=1519200451 CO22 Carbon Dioxide / Temperature/ Humidity Indoor Air Quality Monitor Meter, Wall Mountable CO2 Detector 0~2000ppm Range https://gainexpress-dealer.com/products/co87 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/gain-express-gainexpress-CO2-meter-CO87-preview.jpg?v=1498292120 CO87 Desktop Indoor Air Quality Monitor Temperature Humidity RH CO2 https://gainexpress-dealer.com/products/e04-008 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/gain-express-gainexpress-Multimeter-E04-008-preview1.jpg?v=1498292154 E04-008 Multimeter Dc AC Resistance Diode Tester w/ Backlight https://gainexpress-dealer.com/products/e04-009 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/E04-009_preview.jpg?v=1498292179 E04-009 Digital Multimeter ACV DCV DC current Diode Battery Test Meter https://gainexpress-dealer.com/products/e04-013 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/gain-express-gainexpress-EMF-meter-E04-013-preview.jpg?v=1498292198 E04-013 Handheld Electromagnetic EMF Waves Level Sensor 15mA-90mA https://gainexpress-dealer.com/products/ck-109g 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/gain-express-gainexpress-Distance-Meter-CK-109G-_preview.jpg?v=1498292280 CK-109G 5in1 Distance Meter Stud Metal Live Wire Detector & Laser Marker https://gainexpress-dealer.com/products/clmg-7201 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/CLMG-7201_previen.jpg?v=1531207895 CLMG-7201 10x 18mm Handheld Darkfield Loupe, with Flashlight https://gainexpress-dealer.com/products/clmg-720 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/gain-express-gainexpress-Polariscope-CLMG-7202-preview.jpg?v=1531207679 CLMG-7202 80mm Length + 28mm diameter Handheld Polariscope with Flashlight https://gainexpress-dealer.com/products/c05vid-099_4m_10mm 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/C05VID-099_4M_10mm_preview.jpg?v=1498293399 C05VID-099_4M_10mm 4m Cable Camera 2.4 Portable Video Inspection Endoscope 10mm Borescope https://gainexpress-dealer.com/products/e04-018 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/E04-018_preview.jpg?v=1498294408 E04-018 Analog 5 scales Multimeter DC AC OHM Decibel Resistance https://gainexpress-dealer.com/products/ec-1383 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/gain_express_gainexpress-EC-Meter-EC-1383-preview.jpg?v=1498294429 EC-1383 Pen Type EC / Hydroponics / Nutrient Meter (0~19.99ms/cm) https://gainexpress-dealer.com/products/ec-1385 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-gain-express-water-quality-meter-EC-1385-preview_1024x1024_18916a53-5ce3-4b11-89cf-aa4c5bc8e5a6.jpg?v=1538472881 EC-1385 Digital 3-in-1 EC / CF / TDS Meter Combo Water Quality Tester IP65 Waterproof Conductivity with ATC https://gainexpress-dealer.com/products/ecs-23852 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/ECS-23852_preview.jpg?v=1498294469 ECS-23852 0.4 - 4.4EC EC/ppm/CF Nutra-wand / Hydroponic Meter Stick https://gainexpress-dealer.com/products/ff-1108-1 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/gain-express-gainexpress-Fish-Finder-F-1108-1-preview1.jpg?v=1498294504 FF-1108-1 Wired 100M Digital Sonar Transducer Fishfinder Alarm https://gainexpress-dealer.com/products/ff-718liw_ru 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/gain-express-gainexpress-Fish-Finder-FF-718LiW_RU-preview1.jpg?v=1498294611 FF-718LiW_RU Russian Version Rechargeable Wireless 40M Depth Fish Finder 180m Wireless Range Sensor https://gainexpress-dealer.com/products/e04-025 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/E04-025_preview_8733b780-d39e-4140-b228-7821868a2cc1.jpg?v=1498294645 E04-025 Digital Coating Thickness Gauge Car Painting Thickness Tester https://gainexpress-dealer.com/products/ff-916 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/gain-express-gainexpress-Fish-Finder-FF-916-preview1.jpg?v=1498294703 FF-916 50M WIFI Fishfinder Sonar IOS Android Fish Finder 130 FEET (45 Meters) with Neoprene Bag https://gainexpress-dealer.com/products/ec-1382 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/gain_express_gainexpress-EC-Meter-EC-1382-preview.jpg?v=1498294727 EC-1382 Digital EC Conductivity Meter Tester Water 0~1999 us/cm with ATC & Electrode https://gainexpress-dealer.com/products/e04-037 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/gain_express_gainexpress_Multimeter_E04-037_preview.jpg?v=1498294773 E04-037 Digital Multimeter Frequency Tester Resistance Pen Style Automotive Car Voltage DC/AC Tester https://gainexpress-dealer.com/products/e04-039 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/gain-express-gainexpress-Car-tools-and-Equipment-E04-039-preview.jpg?v=1498294843 E04-039 Automotive Fuel Injection Pump Injector Tester 12V Car Vehicle Diagnostic Tool 4 Modes https://gainexpress-dealer.com/products/e04-040 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/gain_express_gainexpress_Ultrasonic_detector_E04-040_preview.jpg?v=1498294859 E04-040 Ultrasonic Leak Detector Pressure Air Water Dust Leakage Locator https://gainexpress-dealer.com/products/e-1325m 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/files/1-gainexpress-gain-express-ph-electrode-E-1325M-preview.jpg?v=1715329257 E-1325M 0-14 pH Electrode Probe BNC Connector, 300cm Cable for PH Meter Monitor Controller Test Sensor https://gainexpress-dealer.com/products/e-2627 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-gain-express-water-quality-tester-E-2627-preview.jpg?v=1567680177 E-2627 PH Probe with BNC Connector, 150cm Long Cable 0-14pH Test Sensor Electrode for PH Meter Monitor Controller https://gainexpress-dealer.com/products/ff-1108-1cw 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/gain-express-gainexpress-Fish-Finder-FF1108-1CW-preview.jpg?v=1498295845 FF-1108-1CW Lucky Wireless Fish Finder 2~147ft Colored LCD Fishfinder Sensor Sonar Detector Fishing https://gainexpress-dealer.com/products/ff-718li-w 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/gain-express-gainexpress-Fish-Finder-FF-718LiW-preview.jpg?v=1498298572 FF-718Li-W Rechargeable Wireless 40M Depth Fish Finder w/ 180m Wireless Operation Range Sensor https://gainexpress-dealer.com/products/ffw-1108-1 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/gain-express-gainexpress-Fish-Finder-FFW-1108-1-preview.jpg?v=1498299396 FFW-1108-1 LUCKY Dot Matrix Wireless Sonar Sensor Fish Finder with Audible Fish Alarm & Backlight, Depth Sounder 40m (131ft) for fresh and salt water, ocean, river, lake, sea, ice icy water, Fish Locator, Bottom Contour Weed Detector https://gainexpress-dealer.com/products/ffw-718 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/gain-express-gainexpress-Fish-Finder-FFW-718-preview.jpg?v=1546928021 FFW-718 Lucky Portable Wireless Fish Finder Locator with 45m (135ft) Depth & 120m (400ft) Wireless Range, Display Water Temperature/ Fish Size & Location, Fishing Gear Tools for Fresh & Salt water, Ocean, Sea, Lake, River, Ice Icy Water, 90° beam angle https://gainexpress-dealer.com/products/ffw-718ru 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/gain-express-gainexpress-Fish-Finder-FFW-718RU-preview1.jpg?v=1498299506 FFW-718RU Russian Version Wireless 45M Fish Finder w/ Sensor https://gainexpress-dealer.com/products/g0181105-80 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/gain-express-gainexpress-Angle-Finder-G0181105-80-preview.jpg?v=1498299543 G0181105-80 Digital Self Standing Depth Gauge w/ Magnetic Feet 80mm https://gainexpress-dealer.com/products/g0182105-jy4 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/G0182105-JY4_magnet_preivew.jpg?v=1498299587 G0182105-JY4 Digital Level Inclinometer Angle Finder Spirit Level 360° with Magnets https://gainexpress-dealer.com/products/g01gr365 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/G01GR365_preview_35829cb7-5b88-4067-b677-405cc8683659.jpg?v=1498299617 G01GR365 Digital Angle Finder Gauge Spirit Level w/ Magnetic Base ±180° https://gainexpress-dealer.com/products/gm-1018 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/gain-express-gainexpress-Loupe-Magnification-GM-1018-preview.jpg?v=1498299638 GM-1018 10X Jeweler Loupe Magnifier + LED light, 18mm lens https://gainexpress-dealer.com/products/gm20 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/GM20_preview.jpg?v=1498299657 GM20 20X 21mm lens Jeweler Loupe Magnifier + 6 LED light, https://gainexpress-dealer.com/products/gm30 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/GM30_preview.jpg?v=1498299680 GM30 30X Jeweler Loupe Magnifier + 6 LED light , 21mm lens https://gainexpress-dealer.com/products/gm8908 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/GM-8908_preview.jpg?v=1498299691 GM8908 Digital Pocket Anemometer Wind Speed Meter Thermometer https://gainexpress-dealer.com/products/gx-301 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-cold-light-source-GX-301-preview.jpg?v=1591082383 GX-301 Dual Metal Pipe Fiber Optic Halogen Illuminator https://gainexpress-dealer.com/products/foc-c003 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/gain_express_gainexpress_optical_fiber_cleaner_FOC-C003_preview.jpg?v=1498299812 FOC-C003 Fiber Optic Connector Cleaner Kit 500 Wipes Cassette Cleaning System for Optical Fiber Inspection Tool https://gainexpress-dealer.com/products/gx-302 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-cold-light-source-GX-301_-preview.jpg?v=1591084123 GX-301+ Gooseneck Fiber Optic Microscope Illuminator + Color Filters https://gainexpress-dealer.com/products/gx-e1 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gain-express-gainexpress-ph-electrode-GX-E1-preview.jpg?v=1567681299 GX-E1 Single Cylinder pH Electrode + Long Cable + BNC Type Plug + 2 Buffer Solutions https://gainexpress-dealer.com/products/gx-e2 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gain-express-gainexpress-Ph-electrode-GX-E2-preview.jpg?v=1567750584 GX-E2 pH Electrode + 3m Cable + BNC Type Plug https://gainexpress-dealer.com/products/gx-orp2 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gain-express-gainexpress-Ph-electrode-GX-ORP-2-preview.jpg?v=1567751171 GX-ORP2 Replaceable ORP REDOX Electrode 0~±1999 mV for ORP Meter 300cm https://gainexpress-dealer.com/products/ir-g300 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/IR-G300_preview.jpg?v=1498300557 IR-G300 Non-Contact IR Infrared Digital Thermometer -50-380°C https://gainexpress-dealer.com/products/ir-g550 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/IR-G550_preview.jpg?v=1498300586 IR-G550 Digital Non-Contact IR Infrared Digital Thermometer -58-1022°F https://gainexpress-dealer.com/products/ir-g700 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/IR-G700_preivew.jpg?v=1498300616 IR-G700 Digital 0.10~0.99 EM Infrared Thermometer 12:1 Pyrometer 700°C https://gainexpress-dealer.com/products/ir-g900 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/IR-G900_preview.jpg?v=1498300651 IR-G900 Digital Infrared IR Laser Thermometer -50~900°C -58~1652°F 12:1 https://gainexpress-dealer.com/products/m0198876 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/M0198876_preview.jpg?v=1498300835 M0198876 Pen Type Thermo Hygrometer Temperature RH Heat Index WGBT https://gainexpress-dealer.com/products/m0199720 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/gain-express-gainexpress-pH-meter-M0199720-preview.jpg?v=1498300868 M0199720 6-in-1 Water Tester Combo Pen pH, ORP, EC, TDS, Salinity, & Temperature https://gainexpress-dealer.com/products/n04wf200_hd_1m-waterproof-hd-wifi-8-5mm-endoscope-ipad-iphone-android-1m-cable 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/gain-express-gainexpress-Inspection-Camera-N04WF200_HD_1M-Preview.jpg?v=1498301325 N04WF200_HD_1M Waterproof HD WiFi 8.5mm Endoscope Borescope iPad IPhone Android + 1M Cable https://gainexpress-dealer.com/products/orp-1692-0-1999mv-orp-redox-meter-tester-durable-accurate 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/ORP-1692_preview.jpg?v=1590654084 ORP-1692 ORP REDOX Meter -1999 ~ 1999mV Tester Durable Accurate Measurement https://gainexpress-dealer.com/products/orp-1696 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/gainexpress-gain-express-ORP-meter-ORP-1696-preview.jpg?v=1498301362 ORP-1696 ±1999mV ORP REDOX Meter + Electrode + Power Adaptor https://gainexpress-dealer.com/products/orp-8651-3-in-1-heavy-duty-ph-mv-temperature-meter-w-auto-buffer-recognition 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/gainexpress-gain-express-ORP-meter-ORP-8651-preview.jpg?v=1547706406 ORP-8651 3-in-1 Heavy Duty pH, mV & Temperature Meter w/ auto buffer recognition https://gainexpress-dealer.com/products/pc-104-digital-ph-cl2-chlorine-level-meter-water-quality-tester-monitor 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/PC-104_preview.jpg?v=1498301397 PC-104 pH CL2 Chlorine Level Meter Water Quality Tester Monitor https://gainexpress-dealer.com/products/ph-0093 2026-05-06T09:44:46+08:00 daily 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Barometer Temperature Monitor 3 Sensors 220V ONLY https://gainexpress-dealer.com/products/ff-718li 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/gain-express-gainexpress-Fish-Finder-FF-718Li-preview.jpg?v=1498399162 FF-718LI 2in1 Rechargeable Wired 100m Wireless 40m Fish Finder w/ Sensor & Sonar Transducer https://gainexpress-dealer.com/products/gva-18b 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/GVA-18B_preview.jpg?v=1498573911 GVA-18B AC/DC Multimeter Auto Range w/ CD & USB https://gainexpress-dealer.com/products/tmg-4001 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-thickness-meter-TMG-4001-preview_1.jpg?v=1682327879 TMG-4001 Ultrasonic Metal Steel Aluminum Glass Fiber Thickness Velocity Gauge Meter Tester with Backlight Internal Memory 100000 LCD https://gainexpress-dealer.com/products/tmg-4002 2026-05-06T09:44:46+08:00 daily 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https://cdn.shopify.com/s/files/1/1908/1085/products/869-0_preview_569797c9-0848-430b-8def-108bb8609d74.jpg?v=1510917109 869-0 Waterproof 2-in-1 pH & Temperature Meter, ATC, Digital Water Quality Testing Tester w/ ±0.05pH Accuracy, for Spa, Aquarium, Pool, Laboratory, AquaCulture, Hydroponics https://gainexpress-dealer.com/products/77535 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gain-express-gainexpress-CO2-meter-77535-preview.jpg?v=1511414815 77535 Digital 3-in-1 CO2 0-9999ppm Temperature DP WB RH Humidity IAQ Air Quality Meter Tester Monitor carbon dioxide detectors analyzer https://gainexpress-dealer.com/products/tm-190 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-gain-express-EMF-meter-TM-190-preview.jpg?v=1539857901 TM-190 Multi-Field EMF ELF Meter Handheld RF Gauss Meter 0.02 - 2000mG (0.02 to 200 uT) Electromagnetic Electric RF Strength Field Tester Low Frequency Magnetic Fields 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Optical Light Source for Power Meter Handheld with 1310/ 1550nm Wavelength FC/ ST/ SC Interchangeable Interfaces https://gainexpress-dealer.com/products/msc-55 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-gain-express-Microscope-MSC-55-Preview.jpg?v=1515397723 MSC-55 Gain Express 1080P Full HD USB Wifi Digital Microscope 10x-220x Magnification for iOS/ Andriod/ PC with 6 LED, 3 Mega Pixels, Adjustable Focus, Handheld & Desktop Compatible Wireless Rechargeable https://gainexpress-dealer.com/products/htm-49 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gain-express-gainexpress-humidity-meter-HTM-49-preview.jpg?v=1515573112 HTM-49 Gain Express Digital Humidity & Temperature Meter Hygrometer Psychrometer, Dew point and Wet-bulb Temperature range -20~70°C, Humidity range 0~100%RH, Min/Max Hold, LCD Backlight https://gainexpress-dealer.com/products/tmg-50 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gain-express-gainexpress-thickness-meter-TMG-50-preview.jpg?v=1527496805 TMG-50 Portable Film Coating Thickness Gauge Tester Meter, Automotive Car Nondestructive, Non-magnetic Coating on Metal https://gainexpress-dealer.com/products/man-45 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gain-express-gainexpress-pressure-manometer-MAN-45-preview.jpg?v=1619064742 MAN-45 Professional Digital Manometer, Portable Handheld Air Vacuum/ Gas Pressure Gauge Meter 11 Units with Backlight, ±13.78kPa ±2PSI, Suitable for Differential Pressure of 1-2 Pipes, Ventilation, Air Condition System Measurement https://gainexpress-dealer.com/products/nf-820 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-gain-express-Cable-Tester-NF-820-preview.jpg?v=1516080406 NF-820 Underground Cable Tracker Detector AC 220~400V High Low Voltage, Anti-jamming, Wire Locator https://gainexpress-dealer.com/products/end-206_5-5mm_1m 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-gain-express-inspection-camera-END-206_5.5mm_1M-preview.jpg?v=1516181806 END-206_5.5mm_1M 2.7" LCD Screen Monitor Portable HD Industrial Inspection Camera, Borescope, Endoscope, Snake Scope with 1M Waterproof Cable, 5.5mm Camera Head with 6 LED Lights, FREE Carry Pouch https://gainexpress-dealer.com/products/wea-47_uk 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-gain-express-weather-station-WEA-47_UK-preview.jpg?v=1516181812 WEA-47_UK Digital Weather Station RCC MSF with 3 Indoor/ Outdoor Wireless Sensors, 6 kinds of Weather Forecast, Thermometer and Hygrometer https://gainexpress-dealer.com/products/wea-47_eu 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-gain-express-weather-station-WEA-47_EU-preview.jpg?v=1516181816 WEA-47_EU Digital Weather Station RCC DCF with 3 Indoor/ Outdoor Wireless Sensors, 6 kinds of Weather Forecast, Thermometer and Hygrometer https://gainexpress-dealer.com/products/dis-209 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-gain-express-distance-meter-DIS-209-preview.jpg?v=1516259849 DIS-209 40M (131ft) Digital Laser Distance Meter Measuring Device D8 Rangefinder Measure Telemetro Range Finder with Backlit LCD Screen, Single-distance/ Continuous Measurement Area Pythagorean Modes, +/- 1.5mm High Accuracy https://gainexpress-dealer.com/products/tac-44 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gain-express-gainexpress-tachometer-TAC-44-preview.jpg?v=1516946443 TAC-44 Handheld Digital Laser Non-Contact Tachometer, Rotational Speed Measuring Gun, 2.5-99999 RPM, Record (60 Data) MAX/ MIN/ AVG ±0.02%+1 Digtal Accuracy, Speedometer for Small Engines, Car, Bike, Motorcycle, Surface Speed Tach Meter Gauge https://gainexpress-dealer.com/products/rlt-207 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-gain-express-ring-lights-RLT-207_US-preview.jpg?v=1517205226 RLT-207 60 LED Microscope Ring Light Scope Illuminator with 4-Zone Quadrant Control, Adapter Fitting and 8 Adjustable Brightness Level 40~60mm Diameter https://gainexpress-dealer.com/products/cab-38 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gain-express-gainexpress-optical-power-meter-CAB-38-preview.jpg?v=1517299553 CAB-38 OPM Optical Power Meter Digital Tester, -70 ~ 6dBm with 6 Optic Wave Length, Portable Fiber Optic Cable Tester with FC converter for FC/SC/ST https://gainexpress-dealer.com/products/msc-208 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-gain-express-microscope-illuminator-MSC-208_US-preview.jpg?v=1517479894 MSC-208 Cold LED Dual Gooseneck Lights Microscope Illuminator 6500K Color Temperature 100V~240V https://gainexpress-dealer.com/products/ffc-1108-1 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-gain-express-fish-finder-FFC-1108-1-preview.jpg?v=1517549545 FFC-1108-1 Lucky Portable Fish Finder Sonar, TN/ Anti-UV LCD Display with Clear LED Backlight for Night Fishing 100M (328ft) Depth Detection https://gainexpress-dealer.com/products/lkd-51 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-gain-express-leakage-detector-LKD-51-preview.jpg?v=1517911523 LKD-51 Microwave Oven Leakage Radiation Detector Tester with Backlight & Built-in Alarm 0-9.99mW/cm2, 2450MHz https://gainexpress-dealer.com/products/clm-221 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-gain-express-cable-tester-CLM-221-preview.jpg?v=1519357158 CLM-221 Smart Digital Clamp Meter Multimeter 6000 Counts Auto Scan AC/DC Voltage ACA NCV Tester https://gainexpress-dealer.com/products/the-223 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-gain-express-thermometer-THE-223-preview.jpg?v=1546497886 THE-223 Non-contact Infrared IR Laser Thermometer Gun w/ K-Type Thermocouple -50~800°C (-58~1472°F) https://gainexpress-dealer.com/products/the-222 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-gain-express-thermometer-THE-222-preview.jpg?v=1519974821 THE-222 Non-contact Infrared IR Laser Thermometer K-Type Thermocouple -50~800°C / -58~1472°F Color Display Gun-Type with Alarm https://gainexpress-dealer.com/products/eng-214 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-gain-express-multimeter-ENG-214-preview.jpg?v=1521176558 ENG-214 Auto-Ranging LCD Digital Multimeter Engine Analyzer Tester DCV/ACV, RPM Tachometer, Dwell Angle, Current, Temperature, Resistance, Diode Continuity Test, Pulse Width https://gainexpress-dealer.com/products/vid-71_5-5_2m 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gain-express-gainexpress-endoscope-VID-71_5.5_2M-Preview.jpg?v=1521449723 VID-71_5.5_2M Industrial Video Inspection Camera 5.5mm Diameter with 4 LED, 2M Cable Endoscope Borescope IP67 https://gainexpress-dealer.com/products/eng-216 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-gain-express-multimeter-ENG-216-preview.jpg?v=1521454127 ENG-216 Digital Engine Automotive Analyzers Diagnostic Multimeter Auto-Ranging with PC Data Transfer https://gainexpress-dealer.com/products/eng-215 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-gain-express-multimeter-ENG-215-preview.jpg?v=1521619602 ENG-215 Digital Engine Analyzer Automotive Multimeter 6000 Counts Patented Product Design Tester 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https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-gain-express-multimeter-MUL-212-preview.jpg?v=1522216639 MUL-212 Digital DMM Bluetooth Multimeter with iOS & Android Mobile App Meter Tester https://gainexpress-dealer.com/products/htm-41 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-gainexpress-Moisture-meter-HTM-41-preview.jpg?v=1522748458 HTM-41 Digital Wood Moisture Meter 2~70% Humidity Temperature Tester https://gainexpress-dealer.com/products/htm-42 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-gain-express-Moisture-meter-HTM-42-preview.jpg?v=1523328887 HTM-42 Portable Digital Grain Moisture Meter, High Quality Rice Corn Wheat Tester Analyzer- Range 5~30% https://gainexpress-dealer.com/products/mul-213 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-gain-express-multimeter-MUL-213-preview.jpg?v=1523943109 MUL-213 Network Digital Multimeter Tester Multi Meter, Telephone Line RJ11, Cable RJ45, AC DC Voltage, AC DC Current, Resistance, Diode Continuity Test, Battery Meter Tester https://gainexpress-dealer.com/products/the-218 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-gain-express-thermometer-THE-218-preview.jpg?v=1524472732 THE-218 K-type Non Contact Lasergrip Infrared IR Thermometer -30 ~ 550°C (-22~1022°F) Thermocouple https://gainexpress-dealer.com/products/the-217 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-gain-express-thermometer-THE-217-preview.jpg?v=1524558816 THE-217 Non-Contact Lasergrip Infrared 12:1 DS Thermometer Laser Temperature -30 ~ 550°C (-22 to 1022°F) https://gainexpress-dealer.com/products/the-219 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-gain-express-thermometer-THE-219-preview.jpg?v=1524729272 THE-219 Dual Laser IR Infrared Thermometer -50~1500°C (-58°F~ 2732°F), 30:1 DS https://gainexpress-dealer.com/products/rea-503abatc 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-gain-express-REA-503abATC-Preview.jpg?v=1533020716 REA-503ABATC 6-in-1 Automotive Car Refractometer ATC for Adblue/ Antifreeze/ Battery Acid/ Windshield Fluid, Propylene Ethylene Glycol Cleaning Coolant Charge Specific Gravity Density Condition https://gainexpress-dealer.com/products/rea-200atc 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-gain-express-REA-200ATC-Preview.jpg?v=1532343031 REA-200ATC 3-in-1 Automotive Battery Antifreeze Refractometer, -60~0°C Ethylene/ -50~0°C Propylene Glycol/ 1.100-1.400 Battery Fluids Specific Gravity, Battery Charge Test Cooling System https://gainexpress-dealer.com/products/rebs-28atc 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-gain-express-REBS-28ATC-Preview.jpg?v=1533008349 REBS-28ATC 2-in-1 Brix Salinity Refractometer Dual Scale 0-32% Brix & 0-28% Salinity with ATC Sodium Chloride in Food Salt Seawater Brine https://gainexpress-dealer.com/products/rebs-10atc 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-gain-express-Refractometer-REBS-10ATC-Preview.jpg?v=1533016462 REBS-10ATC Tri-Scale Optics Refractometer ATC 0-10% Brix, Salinity 100 PPT , Density 1.000 to 1.070 g/cm3 & Salinity for CNC Cutting Liquid Coolant Salt Sea Water Aquarium Tank Marine https://gainexpress-dealer.com/products/rec-200atc 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-gain-express-REC-200ATC-Preview.jpg?v=1582686533 REC-200ATC Tri Scale Clinical Refractometer with ATC 0~12g/100ml Serum protein, 1~1.050, 1.333 ~ 1.360 RI for Human Urine, Serum or Plasma 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with ATC 0~80% VOL Volume, Optical Handheld Concentration Tester Meter for Distilled Beverages Homebrew https://gainexpress-dealer.com/products/res-28atc 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-gain-express-RES-28ATC-Preview.jpg?v=1533018765 RES-28ATC Salinity Refractometer 0-28% with ATC Sodium Chloride (NaCl) Salt Water Brine Seawater Food Industry ±0.2% Accuracy https://gainexpress-dealer.com/products/reb-32atc 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-gain-express-REB-32ATC-Preview.jpg?v=1533016126 REB-32ATC 0-32% Brix Refractometer ATC High-Concentrated Sugar Solution Content Test Tool 0.2% Division, Homebrew Tester Meter, Brandy Beer Fruits Vegetables Juices Soft Drinks https://gainexpress-dealer.com/products/rea-503catc 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-gain-express-REA-503cATC-Preview.jpg?v=1533020984 REA-503CATC 5-in-1 Automotive Battery Antifreeze Refractometer ATC for Specific Gravity, Ethylene Propylene Glycol System & Windshield Screenwash Fluid, Freezing Point Measurement Tester Meter Coolant Condition https://gainexpress-dealer.com/products/rew-25batc 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-gain-express-REW-25bATC-Preview.jpg?v=1533020070 REW-25BATC Grape Fruit Juice Refractometer with ATC, Dual Scale 0-25% VOL 0-40% Brix Optical Tester for Sugar Glucose Homebrew Wine Determine Alcohol Content https://gainexpress-dealer.com/products/rea-503eatc 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-gain-express-REA-503eATC-Preview.jpg?v=1563785717 REA-503EATC Automotive Refractometer, Ethylene glycol: -60~0°C and 0~100%, Battery Fluid 1.10~1.40kg/l 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Water Aquarium Tank Marine Industry https://gainexpress-dealer.com/products/end-225_5-5mm_1m 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-gain-express-borescope-END-225_5.5MM_1M-preview.jpg?v=1525688532 END-225_5.5MM_1M Inspection Camera Recordable Endoscope 5.5mm 1M Cable with 6 LED Lights, 2.3" TFT Color LCD Borescope NTSC/PAL https://gainexpress-dealer.com/products/phm-224 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-gain-express-water-quality-meter-PHM-224-preview_1024x1024_7ff880e6-1c8c-432b-ba1a-fdabdbb3a30d.jpg?v=1538390940 PHM-224 PH ORP Temperature 3-in-1 Combo Meter Tester Pen Type with Automatic Temperature Compensation https://gainexpress-dealer.com/products/orp-228 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-gain-express-water-quality-ORP-228-preview_1024x1024_349f0910-a841-42e8-84d0-e962a48409e9.jpg?v=1547028423 ORP-228 ORP Redox Meter Tester -1999~1999mV, 1-point Calibration, Aquariums, Swimming Pools, Water Quality Tester https://gainexpress-dealer.com/products/phm-237 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-gain-express-water-quality-meter-PHM-237-preview.jpg?v=1526014272 PHM-237 Economical pH Pocket Meter Tester Size with Clip, High Accuracy Removable Probe Electrode https://gainexpress-dealer.com/products/ecm-227 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-gain-express-water-quality-meter-ECM-227-preview.jpg?v=1526014286 ECM-227 Digital LCD EC Conductivity Meter Tester 0~19.99ms/cm Pen Type with Backlight, Hydroponics, Aquaculture https://gainexpress-dealer.com/products/ecm-226 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-gain-express-water-quality-meter-ECM-226-preview_1024x1024_c16e7ebe-7fcb-4050-b885-dbda503561fd.jpg?v=1549872483 ECM-226 3-in-1 Conductivity EC & pH & Temperature Meter Multi-parameter Tester https://gainexpress-dealer.com/products/dhl-shipping-cost 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/dhl_1024x1024_bb319ffa-1ecc-4c26-845f-df4845a55a06.jpeg?v=1526612994 DHL shipping cost https://gainexpress-dealer.com/products/ecm-231 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-gain-express-water-quality-meter-ECM-231-preview_1024x1024_30426cf1-1ff6-4249-a390-3bdaf7c95ece.jpg?v=1539681821 ECM-231 Online PH & EC Conductivity Monitor Meter Tester ATC, Water Quality Real-time Continuous Monitoring, Rechargeable https://gainexpress-dealer.com/products/phm-229 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-gain-express-water-quality-meter-PHM-229-preview_1024x1024_c3054c2a-e3ef-4c2b-9498-0ec1ff8c7105.jpg?v=1527750561 PHM-229 Digital Aquarium pH Monitor Meter Tester with Replaceable Electrode Continuous Monitoring Fish Tank Pond https://gainexpress-dealer.com/products/reb-32kmwatc 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-gain-express-REB-32KMWATC-Preview.jpg?v=1618477372 REB-32KMWATC Handheld 0-32% Brix Refractometer with ATC, 0-140°Oe, 0-27KMW/Babo, Oechsle, for brandy, beer worth https://gainexpress-dealer.com/products/phm-230 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-gain-express-water-quality-meter-PHM-230-preview.jpg?v=1528884788 PHM-230 Digital Online pH & Temperature Meter, Water Quality Monitoring Pool Aquarium Tester https://gainexpress-dealer.com/products/nd9b 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-gain-express-sound-level-calibrator--ND9B-preivew.jpg?v=1531282032 ND9B Digital Sound Level Meter Calibrator 94dB & 114dB for 1/2" and 1" inch Microphone, Noise Decibel Calibration Tool https://gainexpress-dealer.com/products/phm-234 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-gain-express-water-quality-meter-PHM-234-preview.jpg?v=1531306273 PHM-234 3-in-1 pH, EC & TDS Conductivity Monitor with ATC Water Quality Meter Tester https://gainexpress-dealer.com/products/tds-232 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-gain-express-water-quality-meter-TDS-232-preview_1024x1024_f4b19a10-f6b7-4d81-9c60-25986f4eabf5.jpg?v=1539339371 TDS-232 Digital Combo pH & TDS Monitor Meter Tester ATC, 0.00~14.00pH & 0.0~199.9ppt Rechargeable Real-time Monitoring https://gainexpress-dealer.com/products/7755_cd_adaptor 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-gain-express-CO2-monitor-7755-preview_469e5bf4-920c-4d9e-938f-3992c19f9975.jpg?v=1533796041 7755_CD_ADAPTOR Carbon Dioxide (CO2) RH & Temperature Real-Time Air Quality Monitor with PC Software Recording Analyzer https://gainexpress-dealer.com/products/orp-235 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-gain-express-water-quality-meter-ORP-235-preview_1024x1024_0995680c-0286-4585-b43d-8ea1197c32c0.jpg?v=1552965695 ORP-235 pH mV ORP Temperature 3 in 1 Redox Meter, Removable Electrode Water Quality Tester for Hydroponic Aquarium Fish Tank https://gainexpress-dealer.com/products/htm-238 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-gain-express-humdity-meter-HTM-238-preview.jpg?v=1592200400 HTM-238 Handheld Digital Humidity & Temperature Meter 0~100% RH/ -30~70°C (-22~158°F) Moisture Thermo Hygrometer https://gainexpress-dealer.com/products/ff-1108-1cwla 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-gain-express-fish-finder-FF-1108-1CWLA-preview.jpg?v=1623848947 FF-1108-1CWLA Lucky Wireless Fish Finder with Fish Attractive Light Lamp Rechargeable 45M Depth 60M Sonar Sensor https://gainexpress-dealer.com/products/77535_cd_adaptor 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gain-express-gainexpress-CO2-meter-77535-preview_e1b11fdc-7117-44d5-be5d-544dc91cba56.jpg?v=1537775207 77535_CD_ADAPTOR CO2, RH & Temp Monitor w/PC Software Recording Analyzer, Indoor Air Quality Carbon Dioxide Meter https://gainexpress-dealer.com/products/phc-244 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-gain-express-ph-controller-PHC-224-preview.jpg?v=1538113395 PHC-244 2 in 1 Digital pH & ORP Redox Controller with Separate Relays Replaceable Electrode with Calibration Solution https://gainexpress-dealer.com/products/837-2 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-gain-express-pH-meter-837-2-preview.jpg?v=1539075545 837-2 Salinity & Temp Meter Pen Type Salt Water Quality Tester ATC NaCl, 9999 ppm / 100.0ppt/ 10% / 0.95-1.08 SG Aquarium Pond Food Pool Seawater https://gainexpress-dealer.com/products/wqm-241 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-gain-express-water-quality-meter-WQM-241-preview.jpg?v=1540958544 WQM-241 pH / EC / Temperature Meter ATC 3 in 1 Waterproof Pen Type Water Quality Combo Multi-Parameter https://gainexpress-dealer.com/products/wqm-242 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-gain-express-water-quality-meter-WQM-242-preview.jpg?v=1540959504 WQM-242 5-in-1 Water Quality Multi-parameter PH EC CF TDS (ppm) Temperature Test Meter Aquariums Hydroponics https://gainexpress-dealer.com/products/gm-247 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-gain-express-gloss-meter-GM-247-preview.jpg?v=1541052481 GM-247 Gloss Surface Reflection 0.1-200 GU Tester Meter 20° 45° 75° Rehargeable Reflectometer https://gainexpress-dealer.com/products/wm-206 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/WM-206-preview.jpg?v=1637735665 WM-206 Whiteness Meter Leucometer 0~120 White Color Degree Tester https://gainexpress-dealer.com/products/hm-6580 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-gain-express-Hardness-meter-HM-6580-preview.jpg?v=1541140027 HM-6580 Leeb Hardness Meter Tester 170-960 HLD Metals Durometer D Type Impact Measurement Gauge https://gainexpress-dealer.com/products/hm-6560 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-gain-express-Hardness-meter-HM-6560-preview.jpg?v=1541140040 HM-6560 Leeb Hardness Meter Tester 200-900 HLD Metals Durometer D Type Impact Measurement Gauge https://gainexpress-dealer.com/products/rm-206 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-gain-express-reflectance-meter-RM-206-preview.jpg?v=1617952306 RM-206 Digital Reflectance Meter 0~100 Range Portable Cryptometer Light Reflectivity Transparency Tester https://gainexpress-dealer.com/products/vm-6370t 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-gain-express-vibration-meter-VM-3670T-preview.jpg?v=1541563482 VM-6370T Vibration Tachometer Meter Piezoelectric Sensor Contact Photo Rotation Rate Tester Vibrometer https://gainexpress-dealer.com/products/ffcw-1108-1 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-gain-express-Fish-Finder-FFCW-1108-1-preview.jpg?v=1594291290 FFCW-1108-1 Lucky Wireless Fish Finder Sonar, TN/ Anti-UV LCD Display Fishfinder https://gainexpress-dealer.com/products/vmc-606 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-gain-express-vibration-meter-calibrator-VMC-606-preview.jpg?v=1542190287 VMC-606 Vibration Calibrator Sensor Meter Tester Calibration Handheld Shaker https://gainexpress-dealer.com/products/wtm-1200 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-gain-express-tint-meter-WTM-1200-preview.jpg?v=1542618536 WTM-1200 Wireless Window Tint Meter 0-100% Handheld UV Infrared Light Transmittance https://gainexpress-dealer.com/products/fm-207 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-gain-express-force-meter-FM-207-preview.jpg?v=1542791682 FM-207 Digital Force Meter Gauge Pull & Push Magnitude Tester Newtonmeter Newton N / kg / lb / g Measurement https://gainexpress-dealer.com/products/tds-240 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-gain-express-ph-meter-TDS-240-preview.jpg?v=1542879546 TDS-240 3-in-1 pH / TDS / Temperature Meter Combo Water Quality Tester https://gainexpress-dealer.com/products/the-220 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-gain-express-thermal-imaging-camera-THE-220-preview.jpg?v=1542961215 THE-220 IR Infrared Thermal Imaging Camera Sensor Visual Imager Detector Visual Thermometer, Temperature -4~572°F (-20~300°C) IR Resolution 3600 (60x60) Pixels 2.4" Color Screen 6Hz Refresh Rate https://gainexpress-dealer.com/products/wqm-243 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-gain-express-water-quality-meter-WQM-243-preview.jpg?v=1543386656 WQM-243 6 in 1 Multi-parameter pH/ ORP Redox/ EC/ CF/ TDS PPM/ Temperature Multi-function Water Quality Monitor Tester https://gainexpress-dealer.com/products/sqm-256 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/imgpsh_fullsize.jpg?v=1546496984 SQM-256 Soil pH, Moisture & Light Meter 3 Way Tester Kit, Gardening Acidity Probe Test Tool https://gainexpress-dealer.com/products/sqm-258 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-gain-express-soil-meter-SQM-258-preview.jpg?v=1546497076 SQM-258 Pointer Type Soil pH Meter Tester Sensor with Detachable Probe https://gainexpress-dealer.com/products/phm-239 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-gain-express-water-quality-meter-PHM-239-preview.jpg?v=1544506513 PHM-239 PH Meter 360° Flexible Display Angle, 0.00~14.00pH Portable Water Quality Tester https://gainexpress-dealer.com/products/phm-224_ph 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-gain-express-water-quality-meter-PHM-224_PH-preview.jpg?v=1545807274 PHM-224_PH 3-in-1 ORP Redox PH Temperature Combo Meter Tester w/ EXTRA Electrode https://gainexpress-dealer.com/products/btt-2880 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/files/1-gainexpress-gain-express-belt-tension-BTT-2880-preview.jpg?v=1698830967 BTT-2880 Digital Belt Tension Meter Gauge, 0~77 kg / 0~120 lb / 0~750 Newtons / 0~144 Seems https://gainexpress-dealer.com/products/ff-168d 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-gain-express-fish-finder-FL168-preview.jpg?v=1548916282 FF-168D LUCKY Portable Fish Finder 100m (328ft) Depth Range Fishfinder Detector Zoom Depth Fish Alarm Ocean Sea Lake River Fishing https://gainexpress-dealer.com/products/ff-168lic 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-gain-express-Fish-Finder-FF-168LiC-preview_691_1600x1600_7ffab8c8-0e7e-4993-b921-4d3f8f9287f3.jpg?v=1565669064 FF-168LIC LUCKY 2-in-1 Wired / Wireless Fish Finder Detector 100m / 45m Depth Range https://gainexpress-dealer.com/products/ff-218tpa 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-gain-express-fish-finder-FL218Tpa-preivew.jpg?v=1548915615 FF-218TPA LUCKY Handheld Fish Finder 45m (147.6ft) Depth Range Fishfinder Fish Detector Wireless Sonar Sensor Digital CSTN Display https://gainexpress-dealer.com/products/ff-180ar 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-gain-express-fish-finder-FL180AR-preview_273ec5ce-d2bf-4de8-af45-b0b165bf6f30.jpg?v=1548916047 FF-180AR LUCKY Underwater Camera Fish Locator Finder Sun-Visor Design 120° Wide Angle 20M Cable https://gainexpress-dealer.com/products/ff-180pr 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/FF-180PR-preview.jpg?v=1673871456 FF-180PR LUCKY Underwater Camera Fish Locator Finder 120° Wide Angle 20M Cable Length 4 IR LED 4.3" https://gainexpress-dealer.com/products/cm-1210a 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpres-gain-express-coating-thickness-meter-CM-1210A-preview.jpg?v=1547784486 CM-1210A Coating Thickness Meter Gauge F & NF, Magnetic Induction Eddy Current 0~2000μm 0~80mil Non-Magnetic https://gainexpress-dealer.com/products/cm-1210b 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-gain-express-coating-thickness-meter-CM-1210B-preview.jpg?v=1547784503 CM-1210B Coating Thickness Meter Gauge F & NF 99 Memories Max Min Avg, Magnetic Induction Eddy Current 0~2000μm 0~80mil https://gainexpress-dealer.com/products/cm-2000 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-gain-express-comb-meter-CM-2000-preview.jpg?v=1547784512 CM-2000 Wet Film Combs 25~2032µm Microns Micrometer / 1~80 Mil Dual Scale https://gainexpress-dealer.com/products/cm-8000 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-gain-express-comb-meter-CM-8000-preview1.jpg?v=1547784521 CM-8000 Wet Film Combs 25~3000µm Microns Micrometer / 1~118 Mil Dual Scale https://gainexpress-dealer.com/products/sqm-255g 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-gain-express-soil-meter-SQM-255G-preview.jpg?v=1547793220 SQM-255G Soil Moisture Meter Tester Probe Sensor Plants Growth Watering Quality Monitoring https://gainexpress-dealer.com/products/sns-phm-224 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-gain-express-ph-electrode-SNS-PHM-224-preview.jpg?v=1547799575 SNS-PHM-224 PH Replacement Electrode for Pen Type Combo Meter PHM-224 TDS-240 ECM-226 https://gainexpress-dealer.com/products/phm-245 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-gain-express-water-quality-meter-PHM-245-preview.jpg?v=1568108592 PHM-245 PH & Temperature 2-in-1 Continuous Monitor Meter w/ Backlight Replaceable Electrode https://gainexpress-dealer.com/products/gem-249 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-gain-express-gem-loupe-GEM-249-preview.jpg?v=1548406894 GEM-249 30x Magnification Jewelry Gem Loupe with UV & LED Light 21mm Optical Glass https://gainexpress-dealer.com/products/gem-250 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-gain-express-gem-loupe-GEM-250-preview.jpg?v=1548407987 GEM-250 10x Magnification Jewelery Loupe, 20.5mm Triplet Lens Optical Glass Magnifying Tool https://gainexpress-dealer.com/products/gem-251 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-gain-express-gem-loupe-GEM-251-preview.jpg?v=1548409614 GEM-251 15x Jewelry Loupe Magnifier 20.5mm Triplet Lens Optical Glass Hexagonal Design https://gainexpress-dealer.com/products/gem-252 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-gain-express-gem-loupe-GEM-252-preview.jpg?v=1550567102 GEM-252 20x Magnifications 20.5mm Jeweler Gem Loupe Triplet Lens Magnifier https://gainexpress-dealer.com/products/gem-253 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-gain-express-gem-loupe-GEM-253-preview.jpg?v=1550567114 GEM-253 30x Magnification Jeweler 20.5mm Gem Loupe Magnifiers Jewelry Triplet Lens https://gainexpress-dealer.com/products/gem-246 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-gain-express-gem-loupe-GEM-246-preview.jpg?v=1550567132 GEM-246 10x 21mm Loupe Jeweler Magnifier LED UV Light Triplet Lens Optical Tool https://gainexpress-dealer.com/products/gem-247 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-gain-express-gem-loupe-GEM-247-preview.jpg?v=1550567144 GEM-247 15x 21mm Optic Glass Jeweler Loupe 6 LED & UV Light Magnifier https://gainexpress-dealer.com/products/gem-248 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-gain-express-gem-loupe-GEM-248-preview.jpg?v=1550567159 GEM-248 20x Magnification Loupe 21mm Optical Glass Magnifier 6 LED Light & UV https://gainexpress-dealer.com/products/agf-260 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-gain-express-angle-finder-AGF-260-preview.jpg?v=1551066927 AGF-260 Digital Level Angle Finder Bevel Box Magnetic Base https://gainexpress-dealer.com/products/dt-2859 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-gain-express-tachometer-DT-2859-preview.jpg?v=1551159339 DT-2859 Landtek Photo Laser Non Contact Tachometer 0.5~99,999 RPM https://gainexpress-dealer.com/products/68022 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/files/DM-68022_BL-preview_b1ad8c61-0f4f-4536-8032-2033647638d0.jpg?v=1760001901 68022 Digital 2 Channels K-Type Thermometer 2 Thermocouples -50~1300°C (-58~2372°F) https://gainexpress-dealer.com/products/68022_2p 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/files/DM-68022_BL-preview.jpg?v=1760001706 68022_2P Digital 2 Channels K-Type Thermometer w/ 4 Thermocouples (Wired & Stainless Steel), -50~1300°C (-58~2372°F) https://gainexpress-dealer.com/products/kc-318 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-gain-express-moisture-meter-KC-318-preview.jpg?v=1551325453 KC-318 Digital Pinless Non-invasive Inductive Moisture Meter Hard Soft Wood Drywall Masonry Scanner https://gainexpress-dealer.com/products/hm-934-1 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-gain-express-hardness-meter-HM-934-1-preview.jpg?v=1664956421 HM-934-1 Indentation Barcol Hardness Tester 0~100 HBa Meter Brinell 25~150HB https://gainexpress-dealer.com/products/ht-1292 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-gain-express-humidity-meter-HT-1292-preview.jpg?v=1551862770 HT-1292 Digital Humidity Temperature Meter Tester Indoor Outdoor, 10~95%RH Temp -10~60 °C (14~140°F) with Wet Bulb Temp https://gainexpress-dealer.com/products/ms-120 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/files/MS-120-preview_d5a8902b-abb7-45ca-a97c-fb5e317fd152.jpg?v=1725015622 MS-120 Landtek Digital Mechanic's Engine Stethoscope with Headphone & 2 Separate Sensor Probe 10~10K Hz https://gainexpress-dealer.com/products/ged-2600p 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-gain-express-gas-engine-tachometer-GED-2600P-preview.jpg?v=1552455729 GED-2600P Digital Gasoline Engine Non Contact Tachometer 50.0~9,999 r/min https://gainexpress-dealer.com/products/ht-6510n 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-gain-express-screen-tension-HT-6510N-preview.jpg?v=1553061948 HT-6510N Digital Screen Tension Meter Tester 7~40 N/cm Wire Steel Mesh Frame https://gainexpress-dealer.com/products/srt-6200s 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-gain-express-surface-roughness-meter-SRT-6200S-preivew.jpg?v=1553487701 SRT-6200S Digital Surface Roughness Tester Meter Gauge Ra Rq Rz Rt 4 Parameters https://gainexpress-dealer.com/products/ph-025 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-gain-express-ph-meter-PH-025-preview.jpg?v=1554874545 PH-025 Digital pH Monitor Meter ATC 0.00~14.00pH w/ Power Adaptor & 1.5M Long Electrode Probe, Continuous Water Quality Monitoring Tester Kit Aquarium Hydroponics Spa Tank Pool Laboratories Portable https://gainexpress-dealer.com/products/n04nts300_5m 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-gain-express-NTS300_5M-preview.jpg?v=1574912620 N04NTS300_5M Industrial Endoscope 5M Cable Borescope Video Inspection HD Camera 4.5" Color LCD Monitor https://gainexpress-dealer.com/products/lx-1010bn 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-gain-express-lux-meter-LX1010BN-preview.jpg?v=1557113244 LX-1010BN Digital Light Meter Luxmeter 0~100,000 Lux w/ Selectable Range x1 x10 x100, Handheld Illuminance Tester Sensor Illuminometer Lighting Level Measurement, for Indoor Room Greenhouse Plants Home https://gainexpress-dealer.com/products/rha-100atc 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-gain-express-refractometer-RHA-100ATC-preview.jpg?v=1557996919 RHA-100ATC 3in1 Automotive Battery Antifreeze Refractometer Ethylene Propylene Glycol Battery Fluid https://gainexpress-dealer.com/products/tm-1240 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-gain-express-thickness-meter-TM-1240-preview.jpg?v=1558322510 TM-1240 Digital Ultrasonic Thickness Meter 0.75~400mm Tester Gauge Steel Cast Iron Glass PVC Brass https://gainexpress-dealer.com/products/vm-213 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-gain-express-vibration-meter-VM-213-preview.jpg?v=1558322521 VM-213 Vibration Meter Tester Piezoelectric Sensor Measuring Acceleration, Velocity and Displacement https://gainexpress-dealer.com/products/ff-1108-1cla 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-gain-express-fish-finder-FF-1108-1CLA-preview.jpg?v=1623848716 FF-1108-1CLA LUCKY 100M (328ft) Wireless & 45M (147ft) Wired Sonar Color Fish Finder 90° Beam Angle https://gainexpress-dealer.com/products/ut-40 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-gain-express-ultrasonic-transmitter-UT-40-preview.jpg?v=1560485007 UT-40 Ultrasonic Leak Transmitter, 40 KHz Frequency Ultra Sonic Wave Air Water Pipe Leaks Handy Tool https://gainexpress-dealer.com/products/vm-6380-3 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-gain-express-vibration-meter-VM-6380-3-preview.jpg?v=1560408687 VM-6380-3 Landtek Multi Channel Vibration Meter Piezoelectric Sensor Transducer 10Hz~10kHz Frequency https://gainexpress-dealer.com/products/wm-106 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-gain-express-whiteness-meter-WM-106-preview.jpg?v=1560410293 WM-106 Digital Whiteness Meter 0 ~ 120, Portable Leucometer Tester 254 Data Memory https://gainexpress-dealer.com/products/ffw-718la 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-gain-express-fish-finder-FFW-718LA-preview.jpg?v=1563502920 FFW-718LA Lucky Wireless Fish Finder Rechargeable Locator 45M Depth 150M Wireless Sonar Sensor https://gainexpress-dealer.com/products/wa-60a 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpres-water-activity-WA-60A-preview.jpg?v=1621251318 WA-60A Landtek Water Activity Meter Food Water Activity Measurement Portable Digital Tester https://gainexpress-dealer.com/products/the-262 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-gain-express-themometer-THE-262-preview.jpg?v=1570787648 THE-262 Lasergrip Non-Contact Digital Laser Infrared Gun Thermometer https://gainexpress-dealer.com/products/the-261 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-gain-express-themometer-THE-261-preview.jpg?v=1572077077 THE-261 Non-contact Digital Laser Infrared IR Forehead Gun Thermometer https://gainexpress-dealer.com/products/the-264 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-gain-express-thermometer-THE-264-preview.jpg?v=1572079546 THE-264 Lasergrip Non-Contact Digital Laser Infrared Gun Thermometer -50~750°C (-58~1382°F) https://gainexpress-dealer.com/products/lkd-265 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-gain-express-leak-detektor-LKD-265-preview.jpg?v=1572078151 LKD-265 Lasergrip 2-in 1 Thermal Leak Detector Non-contact Infrared Thermometer https://gainexpress-dealer.com/products/ane-271 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-gain-express-anemometer-ANE-271-preview_1.jpg?v=1572077596 ANE-271 Anemometer Wind Speed Meter Temperature Air Velocity Wind Chill w/ Data Recording https://gainexpress-dealer.com/products/lux-274 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-gain-express-lux-meter-LUX-274-preview_1.jpg?v=1572078470 LUX-274 Handheld Light Meter Digital Illuminance Luminometer up to 200,000 Lux https://gainexpress-dealer.com/products/slm-267 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-gain-express-sound-level-meter-SLM-267-preview_1.jpg?v=1572078751 SLM-267 Decibel Meter Sound Level Tester 30~130dBA Noise Volume Monitoring Instrument https://gainexpress-dealer.com/products/the-266 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-gain-express-thermometer-THE-266-preview.jpg?v=1572341342 THE-266 Lasergrip Non-Contact Laser Infrared Thermometer -30℃~1500℃ (-22℉~2732℉) https://gainexpress-dealer.com/products/man-277 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-gain-express-manometer-MAN-277-preview.jpg?v=1572337304 MAN-277 Digital Manometer Air Pressure Meter Differential Air Pressure Gauge Dual Port https://gainexpress-dealer.com/products/slm-270 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-gain-express-sound-level-meter-SLM-270-preview.jpg?v=1572865363 SLM-270 Digital Audio Decibel Meter Sound Level Meter Noise Level Tester https://gainexpress-dealer.com/products/slm-269 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-gain-express-sound-level-meter-SLM-269-preview.jpg?v=1572337349 SLM-269 Sound Level Meter Audio Decibel Noise Tester 30~130dBA Volume Measuring Instrument https://gainexpress-dealer.com/products/ane-272 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-gain-express-anemometer-ANE-272-preview.jpg?v=1572337370 ANE-272 Digital Vane Anemometer Handheld Wind Speed Temperature Air Velocity Meter https://gainexpress-dealer.com/products/ane-273 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-gain-express-anemometer-ANE-273-preview.jpg?v=1577949016 ANE-273 Professional Anemometer Datalogger Wind Speed Velocity Meter Air Flow CFM CMM Air Volume https://gainexpress-dealer.com/products/az87797 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-gain-express-datalogger-87797-preview.jpg?v=1572945667 AZ87797 WBGT SD Card Datalogger Temperature Humidity Meter Desktop / Wallmount https://gainexpress-dealer.com/products/837-3 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-gain-express-salt-meter-837-3-preview.jpg?v=1608014973 837-3 Pentype TDS / Salinity / Temperature Tester Water Quality Meter with ATC https://gainexpress-dealer.com/products/87786 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-gain-express-WBGT-meter-AZ87786-preview.jpg?v=1573117953 AZ87786 WBGT (Wet Bulb Globe Temperature) Heat Stress Meter Datalogger https://gainexpress-dealer.com/products/ctm-275 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-gain-express-thickness-meter-CTM-275-preview.jpg?v=1573530772 CTM-275 Thickness Meter Gauge Digital HD Colored Display Coating Tester https://gainexpress-dealer.com/products/ctm-276 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-gain-express-thickness-meter-CTM-276-prev.jpg?v=1573616823 CTM-276 Thickness Meter Gauge Digital HD Colored Display Car Paint Coating Tester https://gainexpress-dealer.com/products/emf-280 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-gain-express-EMF-Meter-EMF-280-Preview.jpg?v=1574835832 EMF-280 Digital EMF Tester Electric and Magnetic Field Radiation Detector https://gainexpress-dealer.com/products/vbt-281 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-gain-express-Vibration-Meter-VBT-281-Preview.jpg?v=1575872594 VBT-281 Digital Vibration Meter Piezoelectric Vibrometer Gauge Colored Flip Display https://gainexpress-dealer.com/products/pcm-282 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-gain-express-Power-Monitor-PCM-282_EU-Preview.jpg?v=1575874818 PCM-282 Digital Power Meter Wattmeter Energy Consumption Meter Plug-in Socket Design https://gainexpress-dealer.com/products/pcm-283 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-gain-express-Power-Monitor-PCM-283-Preview.jpg?v=1575966308 PCM-283 Digital Power Meter Electricity Usage Monitor Watt Voltage Tester https://gainexpress-dealer.com/products/htm-278 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-gain-express-humidity-meter-HTM-278-preview.jpg?v=1579845093 HTM-278 Digital Humidity Temperature Meter Psychrometer Thermo-Hygrometer https://gainexpress-dealer.com/products/tm-197 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-magnetic-field-TM-197-preview.jpg?v=1585547783 TM-197 AC / DC Gaussmeter Magnetic Field Strength Meter Teslameter Magnetometer https://gainexpress-dealer.com/products/the-291 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-Gainexpress-Thermometer-THE-291-Preview.jpg?v=1585648159 THE-291 Non-Contact Forehead lR Thermometer Infrared Human Body Surface Temperature Measurement Colored LCD Backlight, Alarm Function and Data Storage https://gainexpress-dealer.com/products/tm-209 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-lux-meter-TM-209-preview.jpg?v=1585897088 TM-209 Digital LED Light LUX / FC (Footcandle) Meter Luminous Intensity Measurement Luxmeter https://gainexpress-dealer.com/products/tm-747d 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-thermometer-TM-7474D-preview.jpg?v=1586253345 TM-747D Digital 4-Channel K /J/ T / E/ R / S/ N Type Thermocouple Thermometer Datalogger 16,800 Data Logging T1/T2, T3/T4 Input Terminal Data Logger https://gainexpress-dealer.com/products/the-293 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-thermometer-THE-293-Preview.jpg?v=1586844139 THE-293 Forehead Body Human Adult Infant Infrared Thermometer 32 Memory FDA Approved Temperature Tester Colored Backlight Fever Indicator https://gainexpress-dealer.com/products/the-294 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-thermometer-THE-294-Preview_f5cc6503-8bcf-4c3b-9725-da8468e8e56b.jpg?v=1586917610 THE-294 Digital 2-in-1 Body Surface Thermometer Forehead Human Baby Infant Adult Temperature Tester 0.5 Sec Quick Respond https://gainexpress-dealer.com/products/87784 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainepxress-WBGT-meter-87784-preview_1024x1024_f42e7576-16a3-48be-8d39-ff47a48b149a.jpg?v=1597032061 87784 Wearable 2-in-1 WBGT + HI Heat Index Checker Wet Bulb Globe Temperature Heat Stress Meter https://gainexpress-dealer.com/products/7530 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-CO2-monitor-7530-preview_1.jpg?v=1598611186 7530 Digital CO2 Carbon Dioxide IAQ Monitor Controller with Relay Function 4.5M Cable NDIR Sensing Probe for Green House Home, Office, Factory https://gainexpress-dealer.com/products/8694 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-8694-ph-meter-preview.jpg?v=1599560089 8694 Long Glass Tube Pentype pH Meter Sharp Tip Probe Digital Water Quality Tester Dual Display with ATC 2.0~12.0pH Measurement Range https://gainexpress-dealer.com/products/88597 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-sd-logger-88597-preview.jpg?v=1600076517 88597 Digital 4 Channels Thermometer NTC Thermistor Probe SD Card Logger with Relay Function Data Logging Big LCD Display https://gainexpress-dealer.com/products/clmg-7173_led-3 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/gainexpress-gainexpress-CLMG-7173-3_-preview.jpg?v=1603275415 CLMG-7173_LED+3 Magnifier Scale Loupe 10x Magnification 8 LED Light 20mm Interchangeable 4 Glass Reticle Scale Chart 25mm Field of View https://gainexpress-dealer.com/products/clmg-7173_led-8 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/gainexpress-gainexpress-CLMG-7173-8_-preview1.jpg?v=1625221296 CLMG-7173_LED+8 Magnifier Scale Loupe 10x Magnification 8 LED Light Interchangeable 9 Glass Reticle Scale Chart 25mm Field of View https://gainexpress-dealer.com/products/phm-300 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-ph-meter-PHM-300-preview.jpg?v=1605339473 PHM-300 Digital Pen type pH Meter Water Quality Liquid Acidity Tester 0.01pH Accuracy for Laboratory, Household Water, Spa, Pool Aquarium https://gainexpress-dealer.com/products/orp-301 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-ORP-301-preview.jpg?v=1605340348 ORP-301 Pensize ORP Redox Tester -1200~1200mV Water Quality Measurement ±2mV High Accuracy Oxidation Reduction Potential Meter https://gainexpress-dealer.com/products/ecm-302 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-TDS-meter-ECM-302-preview.jpg?v=1605341014 ECM-302 Pentype 2-in-1 TDS / EC Meter with ATC Digital Water Quality Tester Temperature Measurement for Water Analysis Hydroponics Aquaculture https://gainexpress-dealer.com/products/wqm-303 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-water-quality-WQM-303-preview.jpg?v=1605341685 WQM-303 Pentype Multi-Paramater 5-in-1 Water Quality Tester (pH / TDS / EC / Temp / Salinity) Waterproof Digital Meter Research Household Industrial Laboratory Analysis https://gainexpress-dealer.com/products/8930b 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-sound-calibrator-8930B-preview.jpg?v=1606897346 8930B Compact Sound Level Calibrator 114dB / 94dB / 104dB Calibration Level For 1/2" 13.2mm Microphone Size Sound Level Meters https://gainexpress-dealer.com/products/phm-295 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/files/PHM-295-preview.jpg?v=1744110004 PHM-295 2-in-1 Combo pH & Temperature Meter Fish Tank Monitor Thermometer Replaceable BNC pH Electrode for Aquariums Hydroponics Aquaculture Laboratory https://gainexpress-dealer.com/products/tri-295 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/gainexpress-water-quality-PHM-295-tripod-preview.jpg?v=1610534284 TRI-295 Optional Stand (TRIPOD) for PHM-295 pH and Temperature Fish Tank Monitor https://gainexpress-dealer.com/products/tm-288 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-TM-288-preview_1024x1024_b38c0127-d99a-49ac-af56-e8293000699d.jpg?v=1611295292 TM-288 Heat Stroke Index Meter Indoor / Outdoor Temperature Measurement WBGT Black-Globe Temp Humidity with Real-time Alarm, Heat Hazard Indicator https://gainexpress-dealer.com/products/gem-310 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-gem-loupe-GEM-310-preview.jpg?v=1611309142 GEM-310 10x Magnification Optical Glass Loupe Magnifier Double Lens Magnifying Jewelry Gem Tool 1/16inch & 0.5mm Scale https://gainexpress-dealer.com/products/gem-309 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-GEM-309-gem-loupe-preview.jpg?v=1611310252 GEM-309 Magnifying Glass 30x Magnification Jewelers Loupe, 6 Lights Desktop Metal Magnifier Portable Folding Scale Eye Loop for Textile Optical Jewelry Tool Coins Currency Stamps Replaceable Battery https://gainexpress-dealer.com/products/gem-309li 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/12-gainexpress-GEM-309-gem-loupe-rechargeable.jpg?v=1611311045 GEM-309LI 30x Magnification Magnifying Glass Jewelers Loupe, 6 Lights Desktop Metal Magnifier Portable Folding Scale Eye Loop for Textile Optical Jewelry Tool Coins Currency Stamps Rechargeable Battery https://gainexpress-dealer.com/products/t41 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/T41-_10_1024x1024_f15c6b9e-53b5-4e23-ab41-cbfd180d80a9.jpg?v=1620619399 T41 OBDII Car Code Reader Scanner Automotive Diagnostic Vehicle Car Tool https://gainexpress-dealer.com/products/t31 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1_1024x1024_9c30f0f9-b459-43ce-a7f9-001e2e95ebd5.jpg?v=1620628794 T31 Mini Auto Diagnostic Trouble Codes Tool for OBD2 EOBD Vehicles Multilingual CAN OBDII Scanner https://gainexpress-dealer.com/products/fedex-shipping-cost 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/FedEx_logo_1.jpg?v=1621506106 FedEx shipping cost https://gainexpress-dealer.com/products/e-312 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-Electrode-E-312-preview.jpg?v=1623756587 E-312 High Accuracy pH Electrode with Calibration Powder, 0-14 pH Probe with BNC Connector & 300cm Cable for Wide Application https://gainexpress-dealer.com/products/the-315_2p 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/files/THE-315_2P_BL-preview.jpg?v=1760003012 THE-315_2P Digital Thermocouple Temperature K Type Thermometer with 4 Probe (Wired & Stainless Steel) Dual Channel High Temperature Kelvin Scale https://gainexpress-dealer.com/products/7729 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-CO2-meter-7729-preview1.jpg?v=1623384216 7729 Wall Mount / Desktop Stand Indoor Air Quality Monitor Real-time CO2 Detector, Carbon Dioxide & Temperature & Humidity Level with Large LED Screen & Visual Color Warning Light Bar and Audible Alarms https://gainexpress-dealer.com/products/e-313 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-electrode-E-313-preview_1024x1024_932d76eb-2b22-441b-8c0b-b840c8884833.jpg?v=1623756775 E-313 Accurate & Fast Combination pH Electrode w/ Long BNC Connector Cable & Calibration Powder, 0~14 pH Measurement Range for Sea Water and Acid Rain https://gainexpress-dealer.com/products/e-314 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-electrode-E-314-preview_1024x1024_46d51c63-ecbc-4c51-a96a-ae53f6f7e7ce.jpg?v=1623756826 E-314 Replacement pH Electrode with Calibration Powder, 0-14 pH Highly Accurate Probe with BNC Connector & 200cm Cable for Continuous Liquid Measurement https://gainexpress-dealer.com/products/8012 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/8012-1_861_1024x1024_c7e51c35-843c-4f39-b5f2-ff4708bd28d4.jpg?v=1624255343 8012 Digital Pen type Salinity Meter Salinometer Salt Analyzer https://gainexpress-dealer.com/products/3081 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/3081_1_112_1024x1024_6fe5f670-3601-4d00-b38c-259fa000036e.jpg?v=1624255827 3081 Digital Pen type Salinity Meter Salinometer Salt Analyzer Replaceable Electrode Tester https://gainexpress-dealer.com/products/3080 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/3080_1_812_1024x1024_725dafd4-2ef1-4aea-8e65-fa0efc6e4077.jpg?v=1624257679 3080 Digital Pen type Salinity Meter Salinometer Salt Analyzer Replaceable Electrode Tester https://gainexpress-dealer.com/products/b_case-319-bt 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-battery-tester-710-110-preview.jpg?v=1627889286 B_CASE-319 + BT Large-capacity, Portable, Waterproof, Shockproof and Flexible Battery Organizer Storage Case, with Tester, Internal Compartment and Containers https://gainexpress-dealer.com/products/mul-318 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-multimeter-MUL-318-preview.jpg?v=1634633869 MUL-318 Professional, 6000 Counts T-RMS Digital Multimeter for Electrical Measurement and Non-contact Voltage Detection, with Probes, Backlight, Flashlight and Protective Case https://gainexpress-dealer.com/products/agf-320 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-angle-finder-AGF-320-preview.jpg?v=1634712801 AGF-320 Digital Angle Gauge Electronic Protractor with Magnetic Base V-Groove Level Box https://gainexpress-dealer.com/products/agf-321 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-angle-finder-AGF-321-preview.jpg?v=1634713238 AGF-321 Digital Angle Gauge Electronic Protractor Highly Precise Level Box with Bubble Level Magnetic Base https://gainexpress-dealer.com/products/agf-322 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-gainexpress-angle-finder-AGF-322-preview.jpg?v=1635240613 AGF-322 Digital Electronic Inclinometer Angle Finder Waterproof IP65 Protractor Level Gauge With V-Groove Magnetic Base Always Upright Reading https://gainexpress-dealer.com/products/the-35 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/thermometer-THE-35-preview_29172a5b-f59d-4391-8dce-fd0cb6edbf0e.jpg?v=1636628335 THE-35 Instrument Infrared Thermometer Instant-read Measuring Range -50~950°C (-58~1742°F), Industrial Chemicals Machinery Cooking Household Used https://gainexpress-dealer.com/products/rhcn-200atc-1 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/RHCN-200ATC_preview_d0ad32de-76d9-48f6-8c33-01012f5bb3aa.jpg?v=1636628769 RHCN-200ATC New Handheld 0-12g/dl ATC Clinical Refractometer https://gainexpress-dealer.com/products/agf-326 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-6-037R.jpg?v=1637228472 AGF-326 Digital Angle Finder Protractor Meter 0-225° with Horizontal & Vertical Bubble Level, Backlit Display https://gainexpress-dealer.com/products/agf-327 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/6-038R_preview_1024x1024_0b42ad36-082e-4121-8503-c23e3d9cf5e2.jpg?v=1637220349 AGF-327 4 in 1 Multifunctional Digital Angle Finder Protractor, Ruler (7inch, 190mm) Level Tool with Horizontal Vertical Circular Level https://gainexpress-dealer.com/products/6-041r 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/6-041R_preview_1024x1024_b6e10058-1e17-4250-a20b-20196669331c.jpg?v=1637224191 6-041R Digital Angle Finder Level Box with Magnetic Base Bright Backlight Protractor Inclinometer Self-inverting Display Gauge https://gainexpress-dealer.com/products/agf-325 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/6-042R_preview_1024x1024_f7b87f96-f61b-4f16-9dda-d2f7b98cb493.jpg?v=1637226150 AGF-325 Digital Level Box Angle Finder with 4 Magnetic Bases Inclinometer Large LCD Display Backlight EBTN IP54 Waterproof Level https://gainexpress-dealer.com/products/6-043r 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/6-043R_preview_1024x1024_cb4d986e-ab5e-455b-b764-291f4ef113f2.jpg?v=1637227032 6-043R Mini Digital Height & Depth Gauge 0-80mm Range with Magnetic Base Self Standing For Saw Table Woodworking, Construction, Home Decoration https://gainexpress-dealer.com/products/sqm-329 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/1-soil-moisture-meter-gainexpress-SQM-329-preview.jpg?v=1646906876 SQM-329 Soil pH and Moisture Meter 2-in-1 Tester 308mm Long Waterproof Metal Electrode for Indoor & Outdoor Gardens Plants Flowers Farming https://gainexpress-dealer.com/products/gam-330 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/gainexpress-radiation-dosimeter-GAM-330-preview.jpg?v=1649310405 GAM-330 Radiation Dosimeter Nuclear Medical Beta Gamma X Ray Detector Tester Metal Nuclear Geiger Counter with Alarm https://gainexpress-dealer.com/products/gam-332 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/gainexpress-radiation-meter-GAM-332-preview.jpg?v=1649316376 GAM-332 Digital Nuclear Radiation Detector Dosimeter Geiger Counter Dose Device Monitor Portable with Dosage Rate Alarm https://gainexpress-dealer.com/products/ffw-335 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/FFW-335-preview_1024x1024_5bd58bd8-50bb-4535-bec4-dc42d9014479.jpg?v=1657705864 FFW-335 Fish Finder Wireless Sonar Sensor 125kHz Frequency 45 Meters / 147 Feet Depth Alarm Function and Large LCD Display https://gainexpress-dealer.com/products/man-334 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/DP-103-preview_1024x1024_f4035a9d-4a17-4392-be38-c2190ece22d1.jpg?v=1657706333 MAN-334 Digital Manometer Portable Air Vacuum / Gas Pressure Gauge Meter 12 Measurement Units with Backlight and Data storage Function Sing Pipe or Differential Pressure of 1-2 Pipes Detection https://gainexpress-dealer.com/products/slm-336 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/SLM-336-preview.jpg?v=1661502595 SLM-336 Smart Decibel Meter Large Colored LED Screen Display Sound Level Tester 30dB to 130dB Range Temperature Humidity Measurement https://gainexpress-dealer.com/products/aqm-338 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/files/AQM-338-preivew.jpg?v=1708596471 AQM-338 Hydrogen Sulfide Detector H₂S Monitor 0~100ppm Electrochemical H₂S Sensor LED Alarm with LCD Screen Backlight Portable Tester https://gainexpress-dealer.com/products/tl-2000c 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/Hedd61ff2f9db4c66907ac87b920c0c7br.jpg?v=1660204948 TL-2000C Digital CO2 Meter Carbon Dioxide Tester Controller Good Air Quality Sensor https://gainexpress-dealer.com/products/ozx-1knt24 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/OZX-1KNT24-preview.jpg?v=1663236439 OZX-1KNT24 Ozone Generator 1000mg/h Purifier Drinking Water https://gainexpress-dealer.com/products/wqm-339 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/files/WQM-339-preview1.jpg?v=1716202308 WQM-339 7in1 Pentype Tester PH / TDS / EC / ORP / Salinity / S.G. / Temperature Meter Water Tester for Drinking Water, Aquariums, Hydroponics Pools https://gainexpress-dealer.com/products/pcm-340 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/PCM-340-preview.jpg?v=1664944261 PCM-340 Socket Tester Receptacle Detector with Red Light Test Result Indicator Outlet Tester for GFCI / Standard 3-Wire 120V Receptacles https://gainexpress-dealer.com/products/wqm-341 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/files/WQM-341-preview.jpg?v=1732249126 WQM-341 Water Quality Tester pH / EC / TDS / Salinity / SG / Temperature with 24Hrs Online APP Monitoring for Fish Tank Aquariums Home Laboratory Smart Instrument https://gainexpress-dealer.com/products/phc-342 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/PHC-342-preview.jpg?v=1666696108 PHC-342 Digital PH / ORP Controller with Monitoring and Dosing in Water Digital pH Meter Redox Temp Tester App Remote Online Monitor for Swimming Pool Aquaculture Fishpond https://gainexpress-dealer.com/products/aqm-345 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/AQM-345-preview.jpg?v=1664950512 AQM-345 Smart Indoor Air Quality Monitor CO2 Meter, TVOC, Humidity, Temperature, PM2.5, PM1.0 with Relay Output APP Control Meter for Home Offices Schools https://gainexpress-dealer.com/products/man-346 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/MAN-346-preview.jpg?v=1664950977 MAN-346 Handheld Manometer Dual Differential Digital Gas Pressure Tester with Backlight 12 Selectable Units Air Pressure Gauge HVAC Tester with Data Storage Function https://gainexpress-dealer.com/products/emf-347 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/EMF-347-preview.jpg?v=1665469925 EMF-347 Handheld EMF Meter Electromagnetic Radiation Detector 5Hz~3.5GHz Rechargeable EMF Detector Temperature Tester for Ghost Hunting EMF Radiation Detecting https://gainexpress-dealer.com/products/pcm-348 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/PCM-348-preview.jpg?v=1665471002 PCM-348 Handheld Outlet Tester Polarity Detector with LED Light Test Result Indicator Socket Tester Power Socket Wiring Tool for GFCI Trip Current Standard Outlets Receptacles https://gainexpress-dealer.com/products/cab-349 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/CAB-349-preview_1.jpg?v=1665471499 CAB-349 Network Cable Tester Cable Tracer Wire Tracker Professional Networking Device with Earphone for Telephone, Internet, Network Cables https://gainexpress-dealer.com/products/htm-350a 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/HTM-350-preview.jpg?v=1665472341 HTM-350A Digital Grain Moisture Tester Moisture Meter Water Content Analyzer with 300mm (11.8") Metal Probe for 14 Grains Wheat Corn Rice Peanut Soybean https://gainexpress-dealer.com/products/mul-351 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/MUL-351-preview_1024x1024_73f221d7-4f9a-45c7-850f-34b9a1e9758e.jpg?v=1665472715 MUL-351 Digital Insulation Tester Resistance Meter 250V / 500V / 1000V Output Voltage 750V AC Voltage Megohmmeter Large LCD Display with Blacklight and Buzzer Alarm https://gainexpress-dealer.com/products/htm-344 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/HTM-344-preview_1024x1024_c0804e71-2f2d-4347-a1dd-06af2adffa6a.jpg?v=1666603828 HTM-344 Pin Type Handheld Moisture Meter Humidity Tester Detector Visual High / Medium / Low Alerts Function for Wood, Plaster, Drywall, Concrete Floors, Building Materials https://gainexpress-dealer.com/products/the-343 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/THE-343-preview1.jpg?v=1666605846 THE-343 K/J Thermocouple Thermometer Dual Channel Temperature Meter Tester 4 K-Type Probes with Temperature Compensation and Alarm Function https://gainexpress-dealer.com/products/htm-352 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/HTM-352-preview.jpg?v=1668409774 HTM-352 Data Logger Thermo-hygrometer Thermometer Temperature and Humidity Datalogging Measurement 25,920 Groups of Reading High Low Alarm with PC Software and Calendar Display https://gainexpress-dealer.com/products/aqm-353 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/AQM-353-preview.jpg?v=1669022477 AQM-353 Smart WiFi CO2 Detector Indoor Air Quality Monitor Carbon Dioxide, Temperature, and Humidity Meter with NDIR Sensor and Air Convection Design for Grow Tent, Bedroom, Wine Cellars https://gainexpress-dealer.com/products/wqm-354 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/WQM-354-preview_1.jpg?v=1670396457 WQM-354 Water Quality Tester 4-in-1 TDS Temperature S.G Salt Salinity Meter with ATC for Testing Drinking Water, Aquaculture, Aquarium, Hydroponics, Swimming Pools https://gainexpress-dealer.com/products/e-366 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/E-366-preview.jpg?v=1671522956 E-366 Replaceable ORP REDOX Electrode 50 OHM BNC Type Connector for ORP Meter Tester Monitor Controller -2000~2000mV Measure with 200cm Long Cable https://gainexpress-dealer.com/products/e-367 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/E-367-preview.jpg?v=1671525911 E-367 pH Electrode Probe BNC Connector 200cm Long Cable for PH Meter Monitor Controller Test Sensor, Replaceable for Aquarium Hydroponics Plant Pool Spa https://gainexpress-dealer.com/products/orp-301_pow 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/ORP-301-Preview.jpg?v=1672027809 ORP-301_POW Pensize ORP Redox Tester -1200~1200mV Water Quality Measurement ±2mV High Accuracy Oxidation Reduction Potential Meter https://gainexpress-dealer.com/products/7730 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/7730-preview.jpg?v=1672892959 7730 Smart CO2 Carbon Dioxide Indoor Air Quality Monitor Temperature Humidity Measurement for Bedroom Close Rooms Offices Classroom https://gainexpress-dealer.com/products/mul-363 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/MUL-363-preview.jpg?v=1672893676 MUL-363 Non-contact AC Voltage Detector Dual Range NCV Tester 12V-1000V / 48V-1000V Live and Null Wire Detection Electrical Tool Breakpoint Finder https://gainexpress-dealer.com/products/mll-362 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/MLL-362-preview.jpg?v=1672899698 MLL-362 Multifunction Magnifier Double Lens 10x and 25x Magnification with AC/DC Power 5LED and 2UV Light 90mm Optical Lens Handheld or Desktop Used https://gainexpress-dealer.com/products/agf-364 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/AGF-364-preview.jpg?v=1672908681 AGF-364 Foldable Angle Finder Spirit Level Ruler 28-Inch Multi-Angle Measure with Magnet 180° Precise Angle Measurement Woodworking, Carpenters Fabricators Tool https://gainexpress-dealer.com/products/lkd-360 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/LKD-360-preview.jpg?v=1673437256 LKD-360 Combustible Gas Leak Detector Gas Leakage Sniffer Methane, LPG, LNG, Fuel, Sewer Gas. Alcohol, Gasoline Flammable Gases https://gainexpress-dealer.com/products/mul-361 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/MUL-361-preview.jpg?v=1673439377 MUL-361 Digital 6-in-1 AC Multi-Function Monitor AC Voltage and Current Frequency Factor Active Power Electricity Digital Colored Screen Display https://gainexpress-dealer.com/products/par-355 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/PAR-355-preview.jpg?v=1673442353 PAR-355 Light PAR Meter Advanced Quantum Sensor Measure Grow Light Intensity Lux Meter PPFD Tester for Indoor and Outdoor Plant Photosynthetic Activity https://gainexpress-dealer.com/products/aqm-356 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/AQM-356-preview.jpg?v=1674126012 AQM-356 CO2 Controller & Monitor Auto Detect Day Night Carbon Dioxide CO2 Meter with 15ft Remote Dual Beam NDIR Sensor for Greenhouse, Grow Rooms, Hydroponics Rooms https://gainexpress-dealer.com/products/the-368 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/THE-368-preview.jpg?v=1674126713 THE-368 Smart Meat Thermometer with Bluetooth up to 30 meters (98.42ft) Wireless Range for Oven, Grill, Kitchen, BBQ, Rotisserie Ringing or Vibrating Alarm IP67 Waterproof Grade https://gainexpress-dealer.com/products/the-372 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/products/THE-372-preview.jpg?v=1681985061 THE-372 Wireless Meat Thermometer for Remote Monitoring - Bluetooth Meat Thermometer Digital Cooking Thermometer with 165ft Wireless Range for Kitchen, BBQ, Oven, Smoker, Grill, and Rotisserie https://gainexpress-dealer.com/products/bat-376 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/files/BAT-376-preview.jpg?v=1683617965 BAT-376 Digital Battery Capacity Tester Volt Checker Load Analyzer Display Check AAA AA C D 9V 3.7V 1.5V Button Cell Household Batteries Universal Tester https://gainexpress-dealer.com/products/gem-375 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/files/GEM-375-preview.jpg?v=1683627670 GEM-375 Scale Loupe Magnifier 10x Magnification LED and UV Illumination Magnifying Glass for Jeweler, Gemstone, Coins and Stamp Collector, Watch Repair https://gainexpress-dealer.com/products/aqm-374 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/files/AQM-374-preview.jpg?v=1686124204 AQM-374 Portable Hydrogen Sulfide (H₂S) Gas Detector 1500 Record Alarm Events with Audible, Visual, Vibration Alarm Function https://gainexpress-dealer.com/products/the-373 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/files/THE-373-preview_ebb6ee59-17df-43d9-9005-2cb88d25d9bd.jpg?v=1731410609 THE-373 K/J/T Datalogger Thermocouple Thermometer -200~1372°C (-328~2501°F), 4-Channel Display, Real-Time Data Logging, Audible and Visible Alarm, and ADJ Compensation https://gainexpress-dealer.com/products/tl205 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/files/TL205-preview.jpg?v=1684218843 TL205 Digital Sound Level Meter 130dB Decibel Tester Auto Ranging A/C Weighting with LCD Backlight https://gainexpress-dealer.com/products/lux-331 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/files/LUX-331-preview_0a75f38b-b749-4340-9b80-8033556d34c9.jpg?v=1730978672 LUX-331 Digital Light / Lux Meter LUX Footcandle FC Illuminance Tester 200000Lux / 20000Fc https://gainexpress-dealer.com/products/htm-382 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/files/HTM-382-preview.jpg?v=1686130123 HTM-382 Non-Destructive Digital Moisture Meter Colored LCD Screen Pinless Wood Moisture Tester for Drywall / Masonry / Softwood / Hardwood with Alarm Function https://gainexpress-dealer.com/products/var-378 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/files/VAR-378-preview_72f7e3a6-ee18-4b53-8356-1e10d300dba5.jpg?v=1773823877 VAR-378 Magnetic Mini Voice Activated Recorder 64GB Recording Device with Speaker 192kbps Sound Quality Long-Lasting Battery for Car Lecture Interview Meeting Class https://gainexpress-dealer.com/products/wqm-369 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/files/WQM-369-preview.jpg?v=1686210652 WQM-369 Bluetooth 6 IN 1 Floating Monitor EC / Salinity / pH / ORP / Temperature / Chlorine Smart Meter Tester https://gainexpress-dealer.com/products/fit-381 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/files/FIT-381-preview.jpg?v=1686727046 FIT-381 Professional Fuel Injector Tester DIY Diagnosis Tool Kit Automotive Gasoline Injector Tester for Identifying Stuck, Leaking, and Burnt-Out Injectors, with 4 Pulse Modes Diagnostic Tool https://gainexpress-dealer.com/products/slm-30b 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/files/SLM-30B-preview_1.jpg?v=1687491632 SLM-30B Professional Sound Level Meter with Smart Bluetooth Function 20000 Datalogging Max/MIN/Hold Alarm https://gainexpress-dealer.com/products/dom-383 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/files/DOM-383-preview.jpg?v=1688728448 DOM-383 Digital Rechargeable DO Meter Dissolved Oxygen Tester with Floating Probe Long Cable Electrode, ATC https://gainexpress-dealer.com/products/par-380 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/files/PAR-380-preview1.jpg?v=1693906130 PAR-380 Quantum PAR Meter Photo Synthetically Active Radiation PPFD Tester for Plant Lighting Horticulture, Research Study of Indoor and Outdoor Plants https://gainexpress-dealer.com/products/aqm-384 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/files/1-Kibeland-Gas-Detector-AQM-384-Preview.jpg?v=1689740855 AQM-384 Portable Gas Detector CO H₂S O₂ EX (LEL) 4 Gas Detection Gas Rechargeable Clip Sniffer with Audible Visual Vibration Alert and Voice Prompt https://gainexpress-dealer.com/products/aqm-388 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/files/AQM-388-preview.jpg?v=1691548992 AQM-388 Portable 9 in 1 Indoor Air Quality Meter CO2 Monitor Formaldehyde Detector VOC Sensor AQI Index PM2.5 PM10 and Humidity Temp with Time Display Air Monitor Test Kit https://gainexpress-dealer.com/products/aqm-385 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/files/AQM-385-preview.jpg?v=1691551018 AQM-385 Carbon Dioxide CO2 Monitor 0~5000ppm Range Large Colored LED Screen Display IAQ Meter Air Quality Tester NDIR Sensor https://gainexpress-dealer.com/products/lux-274bt 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/files/LUX-274BT-preview.jpg?v=1692871524 LUX-274BT Handheld Light Meter with Bluetooth Digital Illuminance Luminometer up to 200,000 Lux https://gainexpress-dealer.com/products/gem-386 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/files/GEM-386-preview.jpg?v=1693460414 GEM-386 Rechargeable 10X Full Metal Jeweler Optical Magnifying Glass 5 LED 5 UV Light Scale Loupe USB Charging Lens Jewelry Gemstone Magnifier Tool https://gainexpress-dealer.com/products/the-387 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/files/1-Milano-Thermometer-THE-387-Preview.jpg?v=1693904362 THE-387 Smart Bluetooth Meat Thermometer 500FT Wireless Range for BBQ, Oven, Smoker, Grilling, Kitchen Food Temperature Measure https://gainexpress-dealer.com/products/gam-391 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/files/GAM-391-preview.jpg?v=1694163524 GAM-391 Geiger Counter Nuclear Radiation Detector Handheld Dosimeter Beta Gamma X-ray Rechargeable Radioactive Monitor Tester Switchable 5 Dosage Units for Outdoor Industry Research and Personal Home Usage https://gainexpress-dealer.com/products/slm-390 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/files/SLM-390-preview1.jpg?v=1694170838 SLM-390 Decibel Meter with Data Logging function and A / C / Z Weighted Sound Meter Portable SPL Meter MAX/MIN/AVG, Data Hold Use for Home, Factory, Noisy Neighbor https://gainexpress-dealer.com/products/tm-214 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/files/TM-214-preview.jpg?v=1694682538 TM-214 Digital Window Tint Meter 100% Visual Light Transmission 4000 Continuous Measurement 6.5mm Thickness Portable Device for Car Window Vehicle Curtains https://gainexpress-dealer.com/products/std-392 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/files/STD-392-preview_1_1024x1024_449eecd5-9e00-4857-a7e7-28dff3e8f97f.jpg?v=1695284273 STD-392 Wall Detector Stud Finder Positioning Hole AC Live Cable Wires Metal Wood 12cm (4.72in) https://gainexpress-dealer.com/products/slm-389 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/files/1-Milano-Sound-Level-Meter-SLM-389-Preview.jpg?v=1695710028 SLM-389 Wall Hanging Sound Level Meter 13" HD Screen Decibel Meter with Data Logger Function Audio and Visual Alarm https://gainexpress-dealer.com/products/sqm-416 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/files/EC-317-preview.jpg?v=1696237456 SQM-416 Waterproof Soil EC and Temperature Meter Digital Tester with ATC for Potted Plants Gardening Agriculture Farm https://gainexpress-dealer.com/products/wifi-9951w 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/files/WQM-397-preview3.jpg?v=1716202250 WQM-397 Smart 5-in-1 pH / TDS / Salt / S.G / Temperature WIFI Tester Water Quality for Drinking Supply Aquarium Hydroponics Pool Aquaculture https://gainexpress-dealer.com/products/snt961w 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/files/1-Kibeland-Gas-Detector-Meter-NGD-01_Preview.jpg?v=1696239116 SNT961W Smart Wifi Natural Gas Alarm Sensor LPG Methane CH4 Combustible Gas Leak Detectors Support Home Smart Life Plug in and Protect https://gainexpress-dealer.com/products/gem-394 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/files/GEM-394-preview_e46af6e4-6b4e-4182-ac94-022b45416375.jpg?v=1744416657 GEM-394 10x Magnification Hasting Jewelry Mini Loupe Optical Glass Triplet Lens Stainless Steel Body Foldaway Pocket Magnifying Tool Stamp & Coin Hobbyists Watch Repair Mechanic https://gainexpress-dealer.com/products/gem-395 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/files/GEM-395-preview_e766d1f6-5374-4c93-9df8-dc5359c2b9ec.jpg?v=1747645122 GEM-395 20x Magnification Hasting Jewelry Mini Loupe Optical Glass Triplet Lens Stainless Steel Body Foldaway Pocket Magnifying Tool Stamp & Coin Hobbyists Watch Repair Mechanic https://gainexpress-dealer.com/products/aqm-396 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/files/AQM-396-preview.jpg?v=1699429925 AQM-396 Carbon Dioxide CO2 Monitor Wall Mount Indoor Air Quality Meter Temperature Humidity Tester Colored Large Screen Display with Alarm 400~5000PPM NDIR Sensor https://gainexpress-dealer.com/products/aqm-393 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/files/AQM-393-preview.jpg?v=1700202595 AQM-393 Travel Carbon Monoxide Detector Portable Mini Vehicle CO Detector Air Quality Monitor for Car, RV, Aircraft CO Gas Alarm with Audible Visual Alert, Lanyard clip https://gainexpress-dealer.com/products/lkd-398 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/files/1-Milano-Gas-Detector-LKD-398-Preview.jpg?v=1700206587 LKD-398 Natural Gas Detector Gas Sniffer Gas Leak Detector Locating Propane, Natural Gas, and Combustible Gas Leak for Home and RV with Gooseneck Probe, Buzzer, Light Indicator https://gainexpress-dealer.com/products/phc-402 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/files/PHC-402-preview-US_954d6dc9-2e74-4f7a-913a-3a08667fee52.jpg?v=1775741014 PHC-402 Dual Relay Digital pH Controller with Temperature Compensation UP and DOWN Adjustable Dosing for Aquarium, Hydroponics System and Indoor Plant Grow https://gainexpress-dealer.com/products/aqm-399 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/files/DP-399-preview.jpg?v=1702362624 AQM-399 Carbon Dioxide CO2 Monitor Indoor Air Quality Meter Temperature Humidity Tester Face Icon Colored Display with Alarm 400~5000PPM NDIR Sensor https://gainexpress-dealer.com/products/tac-401 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/files/1-Milano-Tachometer-TAC-401-Preview.jpg?v=1703657815 TAC-401 Portable 2-in-1 Tachometer Noncontact Laser Photo Sensor Contact(3~19999RPM) & Non-contact(3~99999RPM) RPM Gauge Tester Professional Handheld Car Engine Tool https://gainexpress-dealer.com/products/gem-403 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/files/GEM-403-preview_7cd577f5-6344-426e-9d93-fb6500de95c5.jpg?v=1749806191 GEM-403 14x Magnification Hasting Jewelry Mini Loupe Optical Glass Triplet Lens Stainless Steel Body Foldaway Pocket Magnifying Tool Stamp & Coin Hobbyists Watch Repair Mechanic https://gainexpress-dealer.com/products/wtm-404 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/files/WTM-404-preview.jpg?v=1705648410 WTM-404 Portable Tint Meter Window Tint Tool with Automatic Calibration for measuring VL (Visible Light) UV IR Transmittance and Rejection of Solar Film, Stick-film Glass, Car Window Tint https://gainexpress-dealer.com/products/iwf-405 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/files/3-Milano-Wallet-Finder-IWF-405W-Set.jpg?v=1706680244 IWF-405 Wallet Finder Bluetooth Lost Item Locator Smart Luggage Tags iOS Compatible Thin Tracker Works with Apple Find My App Anti-loss Device Waterproof Locator Phone Finder https://gainexpress-dealer.com/products/ctm-407 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/files/CTM-407-preview.jpg?v=1706613449 CTM-407 Paint Thickness Meter Mil Coating Depth Gauge Tester with Fe/NFe Measuring 0-3500 μm for Used Car Buyers, Check The Cars Original Coating https://gainexpress-dealer.com/products/ikf-406 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/files/4-Milano-Smart-Tag-IKF-406B-Set.jpg?v=1706680165 IKF-406 Smart iTag Key Finder Find My APP, Smart Key, Bike, Luggage, Wallet, Bag Finder Anti-lost Tracker Locator, Bluetooth-compatible for IOS System Replaceable Battery https://gainexpress-dealer.com/products/wqm-408 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/files/WQM-408-preview.jpg?v=1706761076 WQM-408 6in1 Water Quality Testing Meter TOC UV275 EC TDS COD Temp Tester, Intelligent Scoring Mode, Colored Backlight Indicator Digital Water Test Kit for Home Drinking Water, Tap Industrial Water etc. https://gainexpress-dealer.com/products/560-10c 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/files/560-10C-preview.jpg?v=1707209996 560-10C Shore C Digital Hardness Meter Durometer 0~100HC, for Soft Rubber Testing, Foam, Sponges with LCD Display Pocket Size Tester https://gainexpress-dealer.com/products/usc-409 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/files/USC-409B-preview3.jpg?v=1708595616 USC-409 Ultrasonic Cleaner 45Khz 255ML Ultrasonic Denture Cleaning Retainer Jewelry Cleaner Machine for Retainer, Denture, Mouth Guard, Aligner https://gainexpress-dealer.com/products/slm-416 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/files/SLM-411-preview_1_561af8c2-7da0-49c6-ac18-0dcab51c80e1.jpg?v=1710308900 SLM-411 Digital Sound Level Meter 30~130 dBA Decibel Meter Capacitive Microphone Sensor dB Tester 30~130dB SPL Monitor IP54 https://gainexpress-dealer.com/products/var-412 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/files/VAR-412-preview.jpg?v=1710924019 VAR-412 Mini Camera Digital Video Recorder Body Cam 1080P Rotating Lens Camcorder Video Audio Record Night Vision Motion Detection Loop Recording Body Camera for Law Enforcement, Security Guard, Travel, Lecture Record https://gainexpress-dealer.com/products/par-414 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/files/DP-414-preview_a5d722c3-a934-4f76-9993-c91c89b8ba9c.jpg?v=1717574828 PAR-414 Full-Spectrum Quantum PAR Meter Waterproof Sensor IP68 for Aquarium Reef Tank Plants PPFD Tester Indoor Plants, Garden, Farm, Hydroponics Photosynthetic Activity https://gainexpress-dealer.com/products/the-418 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/files/THE-418-Preview.jpg?v=1719297096 THE-418_1P Digital K-Type Thermocouple Thermometer with Wired and Stainless Steel Probe, High and Low Temperature Measurement for High-Temp Furnaces and Ovens or Low-Temp Liquid Nitrogen etc. https://gainexpress-dealer.com/products/slm-417 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/files/SLM-417-preview.jpg?v=1719297374 SLM-417 Digital Sound Level Meter 30~130dB Decibel Tester SPL Monitoring Audio Level Meter for Noise Monitoring in the School, Offices, Traffic, Factory, Home, etc. https://gainexpress-dealer.com/products/lkd-425 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/files/DP-425-preview.jpg?v=1719374145 LKD-425 Gas Leak Detector Combustible Gas Test Analyzer Portable Natural Gas Sniffer for Flammable Natural Gas Acetone Propane Benzene Ethanol Gasoline Methane etc 0~9999PPM Measurement Range https://gainexpress-dealer.com/products/lux-426 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/files/LUX-426-preview_1788c292-2b54-467b-a62a-b25ce57c4515.jpg?v=1721725504 LUX-426 Split Type Digital Light Lux Meter with Temperature Measure Colored LCD Display Illuminance Meter for Luminosity Measuring & Monitoring https://gainexpress-dealer.com/products/man-420 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/files/MAN-420-Preview.jpg?v=1720076739 MAN-420 Differential Pressure Manometer with ±50 kPa Kilopascal Measuring Range for Pneumatic, Compressor, Valves, Tanks, Pump Installations, HVAC Heating Ventilation and Air Conditioning Systems https://gainexpress-dealer.com/products/aqm-422 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/files/AQM-422-Preview.jpg?v=1721125481 AQM-422 IAQ Monitor 5 in 1 Professional HCHO | CO2 | TVOC Meter with Humidity & Temperature Measurement NDIR Sensor Portable Carbon Dioxide Monitor for Home, RV, Grow Tents, Factory etc. https://gainexpress-dealer.com/products/emf-423 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/files/EMF-423-preview.jpg?v=1721195727 EMF-423 Professional EMF Meter Tester Electromagnetic Field Radiation Detector EF, Radio Frequency (RF), Magnetic Field (MF) Detection for Home, Office, School, Hospitals, etc. EMF Inspections https://gainexpress-dealer.com/products/aqm-421 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/files/AQM-421-preview.jpg?v=1721803520 AQM-421 Professional 5in1 Indoor Air Quality Monitor CO | CO2 | TVOC Meter, Humidity & Temperature with NDIR Sensor High Precision Monitor for Home, Offices, RV, Grow Tents etc. https://gainexpress-dealer.com/products/aqm-419 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/files/AQM-419-preview.jpg?v=1721810576 AQM-419 Dual-Output CO2 Controller Carbon Dioxide Monitor with Day & Night Auto Detection, Temperature and Humidity Measurement, 15ft Remote NDIR CO2 Sensor, and Trend Chart for Greenhouses, Offices, Factories, Homes, etc. https://gainexpress-dealer.com/products/lux-429 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/files/LUX-429-preview.jpg?v=1722853694 LUX-429 Digital Light Lux Meter Illuminance Tester Photometer Luxmeter High Precision Illuminometer Lx FC Measurement for Photography, Schools, Hospitals, Workplaces and other Environmental Monitoring https://gainexpress-dealer.com/products/lkd-432 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/files/LKD-432-preview.jpg?v=1722856940 LKD-432 Refrigerant Leak Detector Handheld 17-inch Gooseneck Probe Sensor Heating Diode Leak Tester for Air Conditioning and Refrigeration System with Buzzer, Visual Alarm and LCD Bar Graph https://gainexpress-dealer.com/products/cab-430 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/files/CAB-430preview.jpg?v=1725526577 CAB-430 Fiber Optic Power Meter VFL REF FC SC ST Visual Fault Locator HD Colored LCD Display Fiber Optical Cable Tester Network Tools https://gainexpress-dealer.com/products/emf-427 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/files/EMF-427-preview.jpg?v=1725532478 EMF-427 Solar Power Meter Sun Light Radiation Testing for Solar Energy Research Meteorology Agriculture Sun Light Energy Measuring Tool https://gainexpress-dealer.com/products/lkd-431 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/files/LKD-431-preview.jpg?v=1725878117 LKD-431 Halogen Gas Leak Detector High Sensitivity for Air Conditioning Repair, Car Repair, Gas Pipelines, Industrial Plant, Home Use with 10.5-inch Gooseneck Probe Visual, Audible and Vibration Alert https://gainexpress-dealer.com/products/std-439r 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/files/STD-439R-Preview.jpg?v=1725961420 STD-439R 3 in 1 Home Electric Drilling Dust Collector Wall Mount Laser Level Bracket with Laser Level Function 2M Red Laser Distance with Horizontal & Vertical Bubble Level https://gainexpress-dealer.com/products/slm-413 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/files/SLM-413-preview.jpg?v=1725964975 SLM-413 Wall-mounted|Desktop Noise Decibel Meter 13" Colored Screen Sound Level Tester 130dB with Temperature and Humidity Measurement, 12H/24H Clock Display, Adjustable Brightness and Alarm Function https://gainexpress-dealer.com/products/phm-443 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/files/PHC-443-previewjpg.jpg?v=1726225358 PHM-443 Digital Pentype pH Meter High Accuracy Colored Screen | Red Backlight Alarm | 3-Point Calibration with Temperature Measurement ATC Function for Liquids in Laboratory Food and Medicine Industry https://gainexpress-dealer.com/products/ctm-444 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/files/CTM-444-Preview.jpg?v=1726296451 CTM-444 Professional Thickness Gauge Ultrasonic Thickness Meter Datalogger 1.0~300.0mm (0.03~11.8inches) Record 1500 Data MAX|MIN|AVE Reading Colored Screen for Steel, Metal, Ceramics etc. Measurement https://gainexpress-dealer.com/products/slm-442 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/files/SLM-442-preview.jpg?v=1726735639 SLM-442 Sound Level Meter Datalogger Decibel Noise Tester SPL Monitor with 31,000 Data Record Function, Visual Hi | Low Alarm A | C Weighted Colored Screen Display for Home, Classroom, Traffic Noise Monitoring etc. https://gainexpress-dealer.com/products/slm-441 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/files/SLM-441-whole.jpg?v=1729579714 SLM-441 Decibel Meter Datalogger Sound Level Tester Noise Decibel Reader Monitor SPL Meter with 43,000 Data Record, Visual Alarm, A/C Weighted, PC Connection Colored Screen Display for Home, Classroom, Traffic Noise Monitoring etc. https://gainexpress-dealer.com/products/gem-450_20x 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/files/GEM-450_20X-preview_bab9a15b-2066-4192-b406-ee75ec2f75ac.jpg?v=1729585475 GEM-450_20X Jeweler Magnifier Loupe 20X with 6 UV and LED Light 22mm Optical Triplet Lens, USB Rechargeable Mini Gem Tool https://gainexpress-dealer.com/products/gem-450_10x 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/files/GEM-450_10X-preview.jpg?v=1729587162 GEM-450_10X Jeweler Magnifier Loupe 10X with 6 UV and LED Light 22mm Optical Triplet Lens, USB Rechargeable Mini Gem Tool https://gainexpress-dealer.com/products/gem-450_30x 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/files/GEM-450_30X-preview.jpg?v=1729588143 GEM-450_30X Jeweler Magnifier Loupe 30X with 6 UV and LED Light 22mm Optical Triplet Lens, USB Rechargeable Mini Gem Tool https://gainexpress-dealer.com/products/gem-450_40x 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/files/GEM-450_40X-preview.jpg?v=1729588855 GEM-450_40X Jeweler Magnifier Loupe 40X with 6 UV and LED Light 22mm Optical Triplet Lens, USB Rechargeable Mini Gem Tool https://gainexpress-dealer.com/products/gem-451_10x 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/files/GEM-451_10X-preview.jpg?v=1730456207 GEM-451_10X Magnifier 10x Mini Jeweler Loupe 18mm High-Quality Optical Triplet Lens Battery Free Inspection Ideal for Jewelers, Gemologists, Collectors and Repairs https://gainexpress-dealer.com/products/wqm-448 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/files/WQM-448-Preview.jpg?v=1730972987 WQM-448 Digital 3-in-1 pH | EC | Temperature Tester Waterproof IP65 for pH/EC Measurement in Water, Meats and Soft Solid Food Samples with ATC, Portable High-Accuracy https://gainexpress-dealer.com/products/cab-449 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/files/CAB-449-preview.jpg?v=1730975081 CAB-449 Optical Fiber Identifier 800～1700nm Wavelength with Visual Fault Locator (VFL) and Optical Power Module Function Active Live Optical Network Testing Colored Screen Display Power Meter Tool https://gainexpress-dealer.com/products/gem-451_20x 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/files/GEM-451_20X-preview.jpg?v=1731991169 GEM-451_20X Magnifier 20x Mini Jeweler Loupe 18mm High-Quality Optical Triplet Lens Battery Free Inspection Ideal for Jewelers, Gemologists, Collectors and Repairs https://gainexpress-dealer.com/products/gem-451_30x 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/files/GEM-451_30X-preview.jpg?v=1731991404 GEM-451_30X Magnifier 30x Mini Jeweler Loupe 18mm High-Quality Optical Triplet Lens Battery Free Inspection Ideal for Jewelers, Gemologists, Collectors and Repairs https://gainexpress-dealer.com/products/clmg-7209_blk 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/files/CLMG-7209_BLK-Preview.jpg?v=1733305905 CLMG-7209_BLK Foldaway Dichroscope Gemstone Jewelry Testing Tool Lightweight and Portable Ideal for Jewelers and Gemologists https://gainexpress-dealer.com/products/clmg-7209_wht 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/files/CLMG-7209_WHT-Preview.jpg?v=1733306133 CLMG-7209_WHT Foldaway Dichroscope Gemstone Jewelry Testing Tool Lightweight and Portable Ideal for Jewelers and Gemologists https://gainexpress-dealer.com/products/wqm-453 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/files/WQM-453-Preview_US.jpg?v=1733561812 WQM-453 Water Quality Conductivity Indicator 7 LED Conductivity Level Measure 0~90us/cm with ATC and IP68 for Water Filter Monitoring, Environmental Checking etc. https://gainexpress-dealer.com/products/tac-455 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/files/TAC-455-preview.jpg?v=1735030817 TAC-455 Portable Non-Contact Tachometer 2.5~99999RPM High Precision with Analog Bar Scale and Alarm Function, Temperature Measurement for Machinery Car Motor engine Tool https://gainexpress-dealer.com/products/sqm-457 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/files/SQM-457-fpreview.jpg?v=1735033442 SQM-457 High Precision 8-in-1 PH EC Fertility Salt Temperature Soil Moisture Meter Smart Bluetooth Light Intensity Air Humidity Detector for Plant Health Monitoring https://gainexpress-dealer.com/products/emf-456 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/files/EMF-456-Preview.jpg?v=1735552299 EMF-456 Gauss Meter Portable Tesla Meter Gaussmeter 0~2500 mT Surface Magnetic Field Tester High Precision Hall Sensor ±1% Accuracy with Data Record Function https://gainexpress-dealer.com/products/gem-459 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/files/GEM-459-preview.jpg?v=1737972015 GEM-459 Gemstone Identification 2-in-1 Tool 15x Magnifier & Jadeite Filter with 21mm Lens Diameter for Genuine Emeralds Checking, Diamonds, Jewelry, Coins, Stamps, Antiques, etc. https://gainexpress-dealer.com/products/gem-460 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/files/GEM-460-Preview.jpg?v=1737973640 GEM-460 Portable 93mm Length LED Gemstone Polariscope, Dual Lens with 28mm Diameter, Built-in LED Light for Jeweler, Gemologist Tool https://gainexpress-dealer.com/products/gem-461 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/files/GEM-461-Preview.jpg?v=1737975072 GEM-461 Focusing Prism Spectroscope for Gemstone Analysis Adjustable Focus, 400-700nm Wavelength Range, Durable Aluminum Design for Jeweler, Gemologist Testing Tool https://gainexpress-dealer.com/products/gem-462 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/files/GEM-462-preview.jpg?v=1738141362 GEM-462 Dual Magnification Jewelry Loupe 10X and 25X Magnifier Loupe with 21mm and 8mm Lens Diameter https://gainexpress-dealer.com/products/gem-463 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/files/GEM-463-preview.jpg?v=1738142404 GEM-463 Portable 10x Darkfield Loupe Gemology Magnifier Gemstone Tester 20.5mm Lens Viewing Diameter https://gainexpress-dealer.com/products/jw3302sj 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/files/JW3302SJ-preview.jpg?v=1739948321 Professional 8-in-1 Fiber Optic Tester Multifunctional OTDR for FTTx and Network Maintenance 3.5-inch Display Screen, Rechargeable, 600 Internal Storage https://gainexpress-dealer.com/products/mini-pro-series-otdr-compact-and-multifunctional-fiber-optic-tester-opm-ls-vfl-rj45-cable-tracking-for-fttx-network-construction-etc 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/files/JW3302K-preview.jpg?v=1741599553 Mini Pro Series OTDR: Compact and Multifunctional Fiber Optic Tester OPM, LS, VFL, RJ45 Cable Tracking for FTTX, Network Construction, etc. https://gainexpress-dealer.com/products/lux-510 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/files/openart-e725d59e-955e-41fc-bc70-1e14af7f76da.jpg?v=1742376912 LUX-510 Portable Spectral Illuminance Meter Light Lux Tester with Spectral Sensor Measuring CRI, CCT, Blue Light, UV Index, Temperature, Humidity https://gainexpress-dealer.com/products/wt637 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/files/HTM-495-preview1.jpg?v=1744800583 HTM-495 Moisture Meter for Drywall, Wood Moisture Meters for Walls, Firewood Floor Humidity Detector Lumber Humidity Tester Paper Ceramic Ceiling Firewood Cardboard Humidity Building Material https://gainexpress-dealer.com/products/htm-483 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/files/HTM-483-Preview.jpg?v=1742808374 HTM-483 Handheld Thermo-Hygrometer Ambient Temperature and Relative Humidity High Precision Measurement https://gainexpress-dealer.com/products/lux-484 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/files/LUX-848-preview.jpg?v=1742809917 LUX-484 Lux Light Meter for Visible Brightness Measurement with 0.1~200000LUX / 0.01~20000FC Range Ideal for Warehouses, Factories, Hospitals, and Schools https://gainexpress-dealer.com/products/ane-486 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/files/ANE-486-preview.jpg?v=1742812695 ANE-486 Digital Air Velocity Meter High Precision Anemometer 0.3~30.0m/s, km/h, ft/m, mile/h, knots Units with Air Temperature Measurement https://gainexpress-dealer.com/products/aqm-410 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/files/AQM-410-preview.jpg?v=1743491225 AQM-410 Portable 8-in-1 Indoor Air Quality Monitor CO2/TVOC/HCHO/AQI/PM2.5/PM10/Temp/RH with Time Clock Display in Large Color LCD Screen https://gainexpress-dealer.com/products/n03-567 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/files/N03-567_whole.jpg?v=1744103217 Digital Temperature Controller 10A Heating Cooling Control Modes Thermostat Outlet for Greenhouses, Fish Tank, Aquariums, Breeding, Brewing etc. https://gainexpress-dealer.com/products/par-499 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/files/PHM-499-preview1.jpg?v=1744419041 PAR-499 Digital PAR DLI Meter Datalogger Plant Light Meter for Growers, Measures PAR & Daily Light Integral (400-700nm) Photosynthetic Light, Ideal for Hydroponics, Greenhouses & Indoor Gardening https://gainexpress-dealer.com/products/htm-482 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/files/HTM-482-preview.jpg?v=1744421205 HTM-482 Multi-Function Environmental Meter Thermo-Hygrometer Datalogging Temperature, Humidity and Wet Bulb Dew Point Measurement PC Connection Feature Record and Download https://gainexpress-dealer.com/products/the-494 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/files/THE-494-preview.jpg?v=1744884458 THE-494 Mobile Infrared Thermal Imager - Smart Thermal Imaging & Temperature Measurement Android Type C Mobile Phone Photo Video Capture Camera Thermometer https://gainexpress-dealer.com/products/industrial-paperless-recorder-data-logger-temperature-pressure-current-voltage-smart-recorder 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/files/Analogdatalogger_photo3.jpg?v=1745314362 Industrial Paperless Recorder Data Logger Temperature Pressure Current Voltage Smart Recorder https://gainexpress-dealer.com/products/inc-501 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/files/INC-501-preview.jpg?v=1746181138 INC-501 Egg Incubator with Automatic Egg Turning, Temperature Control, Candler, Humidity Display, 8~18 Eggs Chicken Embryo Incubator for Hatching Chicken, Duck, Bird, Quail, Goose, and Turkey Embryos https://gainexpress-dealer.com/products/phc-493 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/files/PHC-493-preview1.jpg?v=1755508528 PHC-493 PH / EC /Temp Meter Smart Acidity & Conductivity Range Controller Monitoring and Dosing in Water pH Meter Conductivity Temp Tester App Remote Online Monitor for Swimming Pool Aquaculture Fishpond https://gainexpress-dealer.com/products/wqm-504 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/files/WQM-504_-_Preview.jpg?v=1748931684 WQM-504 Smart Aquarium Water Quality Monitor – 7-in-1 Real-Time Water Tester for pH, Temperature, TDS, EC, Salinity, Specific Gravity & ORP – WiFi Connected with Mobile Alerts https://gainexpress-dealer.com/products/emf-509 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/files/EMF-509-preview1.jpg?v=1748844805 EMF-509 Solar Panel Meter 5-1800W MPPT Tester with Auto/Manual Detection Voltage, Current, Photovoltaic Panel Multimeter for PV Systems https://gainexpress-dealer.com/products/bft-505 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/files/BFT-505-preview2_fde07b40-3041-4cd4-be08-26420e49a3d2.jpg?v=1750155615 BFT-505 Brake Fluid Tester 0~4% Range Digital Brake Oil Detector for DOT3, DOT4, DOT5.1 Color Backlight & Buzzer Alarm for Safe Brake Oil Change of Car Motorcycle Vehicle Truck Automobile https://gainexpress-dealer.com/products/emf-506 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/files/EMF-506-preview2.jpg?v=1752741716 EMF-506 Digital Gauss Meter / Tesla Meter - High Precision Portable Magnetic Field Detector 0~25k Gs (0~2500 mT) Range for Magnet Testing, Motors & Industrial Applications HD Colored Display with Hall Sensor https://gainexpress-dealer.com/products/aqm-481 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/files/AQM-481-preview.jpg?v=1750070378 AQM-481 Portable CO2 Monitor with Temperature & Humidity Measurement NDIR Sensor Technology, 3-Color Air Quality Alert, Rechargeable Battery 40+ Hour Continuous Usage https://gainexpress-dealer.com/products/emf-511 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/files/EMF-511-Preview.jpg?v=1750146372 EMF-511 Professional 3-in-1 EMF RF Meter: Electric / Magnetic / RF Field Detector with Data Hold & Alarm, EMF Safety Tester for Home / Industry Use https://gainexpress-dealer.com/products/aqm-514 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/files/AQM-514-preview.jpg?v=1751361845 AQM-514 Advanced Portable Radon Gas Detector – Real-Time Monitoring, High Sensitivity Sensor, TFT Color Display & Audible Alarm for Home, Basement, Workplace & Mine Safety https://gainexpress-dealer.com/products/mul-508 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/files/MUL-508-Preview.jpg?v=1751969157 MUL-508 Portable LCR Meter Tweezer: Resistance/Capacitance/Inductance Tester w/ Diode Test, 100Hz/1kHz/10kHz, Color Display - Compact LCR Bridge https://gainexpress-dealer.com/products/the-517-wireless-solar-pool-thermometer-with-rgb-lights-ip68-floating-temperature-gauge-for-pools-hot-tubs-spa 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/files/THE-517-preview.jpg?v=1751970570 THE-517 Wireless Solar Pool Thermometer with RGB Lights, IP68 Floating Temperature Gauge for Pools, Hot Tubs, Spa https://gainexpress-dealer.com/products/the-518 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/files/THE-518-preview.jpg?v=1751971533 THE-518 Wireless Solar-Powered Pool Thermometer Floating Thermometer with RGB Lighting IP68 Waterproof Swimming Pool Indoor Temperature and Humidity Measure for Swimming Pools, Spa, Hot Tubs https://gainexpress-dealer.com/products/msc-520 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/files/MSC-520-preview_7551bf1b-249f-4529-877c-3ec02c0781e6.jpg?v=1774266500 MSC-520 500X Digital Microscope with 3.0" IPS Screen, Autofocus, 64GB TF Card Support, Photo and Video with 8 LED Lights – for Windows/Mac Portable Magnifier for Coin, PCB Circuit Repair, Jewelry Inspection, School Laboratory etc. https://gainexpress-dealer.com/products/gem-522 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/files/GEM-522-preview.jpg?v=1752736390 GEM-522 10X Magnifying Scale Loupe White & Purple LED Lights Adjustable Focus Rechargeable Magnifier Glass Lens for Jewelers, Collectors, Hobbyists, and Professionals https://gainexpress-dealer.com/products/88594 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/files/88594-preview.jpg?v=1753525864 88594 GLP-Compliant K-Type Thermocouple Data Logger: High-Accuracy Temperature Meter (-328°F to 2498°F / -200°C to 1370°C) with 48,000-Point Datalogging, CSV Export & Alarms, Portable/Wall-Mountable, Flexible IR Printing (Optional) https://gainexpress-dealer.com/products/gem-521 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/files/GEM-521-Preview.jpg?v=1753784415 GEM-521 10X Magnifying Loupe with LED Light & UV - K9 Lens with 30mm Diameter, Portable Jewelers Loupe for Gemstone, Coin, Stamp, PCB Inspection USB-C Rechargeable https://gainexpress-dealer.com/products/tac-524 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/files/TAC-524-prevew.jpg?v=1755076368 TAC-524 High-Precision Digital Tachometer Non-Contact RPM Laser Tester MAX/MIN/AVG Photoelectric Sensing 10-99999 RPM Range with Reflection Tape Max/Min/AVG Function https://gainexpress-dealer.com/products/wqm-526 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/files/WQM-526-Preview.jpg?v=1755078554 WQM-526 Digital Water Testing Kit for Hot Tub, Pools & Spas Water Tester Measures pH, Free Chlorine, Total Alkalinity, Bromine, Cyanuric Acid, Total Chlorine, Total Hardness with Water Analyzer and Test Strips https://gainexpress-dealer.com/products/the-263_1tc 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/files/THE-263_1TC-Preview.jpg?v=1755080712 THE-263_1TC Infrared Thermometer -50~850°C (-58~1562°F) Temperature Gun with Bead Type Thermocouple & Clamp Type Temperature Probe Non-Contact Laser Temperature Industrial and Home Use Pyrometer for Engine High Temp Measurement Furnace Oven etc. https://gainexpress-dealer.com/products/mul-523 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/files/DP-523-preview.jpg?v=1755769712 MUL-523 Digital Clamp Meter AC/DC Multimeter with Voltage Tester, Capacitance, Resistance, Frequency, Duty cycle, Diode Test, Line Connection Test, and Temperature, Non-Contact Current Clamp for Electricians, HVAC, Home Repairs & DIY https://gainexpress-dealer.com/products/mul-498 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/files/MUL-498-Preview2.jpg?v=1755773069 MUL-498 Portable Handheld Digital Oscilloscope Voltage, Frequency, Rise Time, Duty Cycle for Professional and DIY Analysis https://gainexpress-dealer.com/products/uvm-529 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/files/UVM-529-preview.jpg?v=1755858919 UVM-529 Digital Ultraviolet Detector UV UVI Tester Light Meter Irradiance Intensity Monitor 100 Data Record for Reptile Husbandry, Phototherapy, Indoor Tanning Personal and Professional Usage https://gainexpress-dealer.com/products/mul-400 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/files/MUL-400-Preview1.jpg?v=1756478741 MUL-400 Mini Digital Oscilloscope Portable 200KHz Meter with 2.8" LCD, Auto Trigger, & USB Power with High Voltage Probe (800V) https://gainexpress-dealer.com/products/clmg-7301 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/files/CLMG-7301_white-Preview2.jpg?v=1756479792 CLMG-7301 Chelsea Filter Mini Gemstone Tool 21mm Lens Diameter with Glass Filter Foldable Design Heavy Duty https://gainexpress-dealer.com/products/wqm-527 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/files/WQM-527-preview.jpg?v=1756980904 WQM-527 Smart WIFI Water Quality Monitor Multi-Parameter Aquarium Monitor pH, Temperature, TDS, EC (Conductivity), Salinity, S.G, and ORP for Hydroponics, Aquarium, Fish Tank, Aquaculture https://gainexpress-dealer.com/products/emf-528 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/files/DP-528-preview.jpg?v=1756982273 EMF-528 EMF Meter Tester Electromagnetic Field Radiation Detector EF, Radio Frequency (RF), 3-Axis Magnetic Field (MF) Detection for Home, Office, School, with Audible and Visual Alarm Professional Rechargeable Tester https://gainexpress-dealer.com/products/temp_clamp 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/files/temp-clamp-preview.jpg?v=1757754957 K-Type Thermocouple Temperature Clamp Lead Probe Pipe Clamp for Thermometer Multimeter Temp Measurement https://gainexpress-dealer.com/products/gem-446 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/files/GEM-446-preview.jpg?v=1758251713 GEM-446 Rechargeable 10x Magnification Scale Loupe, K9 Optical Glass with LED/UV Lighting and Adjustable Focal Length for Jewelry, Coins, Stamps, and Small Objects https://gainexpress-dealer.com/products/mir-534 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/files/MIR-534-preview.jpg?v=1758255557 MIR-534 Double Sided 1X/10X LED Light Vanity Mirror 9" Rechargeable Make Up Mirror with Adjustable Brightness and 3-Color Change, 360° Rotatable, Touch Screen Design https://gainexpress-dealer.com/products/par-530 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/files/DP-530-prevew.jpg?v=1758622181 PAR-530 Spectroradiometer PPFD Meter Spectrometer PAR Quantum Meter UV IR Light Color Control Analysis Measures 320-800nm from 0~5000μmolm²/s Ideal for Plant Growth, Lab, Home and Industrial Use https://gainexpress-dealer.com/products/wwr-531 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/files/WWR-531-preview.jpg?v=1760958377 WWR-531 Automatic Watch Winder, Single Watch Winder with 4 Rotation Modes/ Blue LED Light/ Smart Stop Technology/ Foam Pad Quiet Motor Wooden Display Case for Automatic Watches https://gainexpress-dealer.com/products/wwr-532 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/files/WWR-532-preview.jpg?v=1761038452 WWR-532 Automatic Watch Winder for Two Automatic Watches – 4 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https://gainexpress-dealer.com/products/msc-454 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/files/MSC-454-Preview.jpg?v=1766570216 MSC-454 Magnification Microscope 100X LED Lightning Scale Loupe Compact Portable High Magnifying Glass Geology Metallurgy Research https://gainexpress-dealer.com/products/wqm-525 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/files/WQM-525-prevew.jpg?v=1766656731 WQM-525 WiFi Smart pH Meter 8-in-1, Multi-Parameter Water Quality Tester for pH/TDS/EC/Salinity/ORP/Temp for Aquarium, Hydroponics, Pool https://gainexpress-dealer.com/products/ups-shipping-cost 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/files/UPS.jpg?v=1768894170 UPS Shipping Cost https://gainexpress-dealer.com/products/88360 2026-05-06T09:44:46+08:00 daily https://cdn.shopify.com/s/files/1/1908/1085/files/88360_preview.jpg?v=1770705109 88360 Bluetooth Temperature Data Logger 48000 Reading 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Photovoltaic Meter with Data Storage, Full Protection & Color Screen | Portable PV Panel Tester for Testing, Installation & Maintenance