DOM-383 Digital Rechargeable DO Meter Dissolved Oxygen Tester with Floating Probe Long Cable Electrode, ATC

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DOM-383 Digital Rechargeable DO Meter Dissolved Oxygen Tester with Floating Probe Long Cable Electrode, ATC

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The Pentype DO meter is a portable device designed to accurately measure the dissolved oxygen (DO) levels in liquid, particularly water. It utilizes a pen-like form factor, making it convenient and easy to use in various applications where monitoring DO levels is crucial.

With the ability to measure DO in milligrams per liter (mg/l), the Pentype DO meter provides precise and reliable readings, ensuring the accuracy of water quality assessments. It is an essential tool in numerous fields, including environmental monitoring, aquaculture, wastewater treatment, research laboratories, and industrial processes.


  • Pentype long cable DO meter
  • Equipped with a self-floating probe (ensure the measurement reading is from water and not from the sand)
  • Large screen with adjustable backlight brightness
  • Portable and easy to carry in different outdoor testing
  • Accurate dissolved oxygen and temperature reading
  • Low battery indicator
  • Built-in rechargeable battery that can be charged via USB Type-C cable
  • Switchable DO and Temperature Unit
    • Dissolve Oxygen (DO): % and mg/L
    • Temperature: °C/°F
  • One key 100% DO Calibration in the air (no need for any chemicals)
  • Easy to maintain with high sensitive membrane set
  • With Automatic Temperature Compensation (ATC)
  • Manual salinity and barometric pressure compensation
  • Highly accurate double precious metal DO probe
  • Easy replaceable thin membrane kit and quick-to-refill electrolyte
  • With backlight function


  • DO Measurement
    • Range: 0.00~20.00mg/L (0.0~199.9%)
    • Accuracy: ±0.4mg/L (±3%F.S)
    • Resolution: 0.01mg/L (0.1%)
  • Temperature Measurement
    • Range: 0~50°C (32~122°F)
    • Accuracy: ±0.5°C (±0.9°F)
    • Resolution: 0.1°C
  • Automatic Temperature Compensation: 10~40°C (50~104°F)
  • Manual Compensation
    • Salinity Measurement: 0.0~45.0ppt; 0.1ppt resolution
    • Barometric Pressure: 500~760mmHg / 101.3~66.7Kpa; 1mmHg/0.1KPa resolution
  • LCD Size: 30 x 18mm
  • Operating Environment: 0~40°C; <85%RH
  • Storage Environment: 0~40°C; <80%RH
  • Sensor response Time: <30sec. for DO; <90 sec for temperature
  • Sensor Warm-up Time: <60sec after power up
  • Battery: 3.7V 500mAh rechargeable battery
  • Operating time: about 60hrs of continuous usage without backlight
  • Charging time: 1.5hrs
  • Weight: approx. 256gms
  • Dimension: 176 x 39 x 39mm

Set Includes:

  • 1 x DO meter
  • 1 x DO Floating Probe with 3m Cable
  • 2 x Spare DO Membrane
  • 1 x Electrolyte
  • 1 x Type-C Charging Cable
  • English User Manual
  • Standard Factory Packaging

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