SNS-8690 Optional Replaceable Electrode for Waterproof Digital PH meter Temperature (869-0)

ZD-07 4-in-1 Soil Survey Instrument ( pH °F / °C moisture sunlight )

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868-5 Waterproof pH meter with Temperature + Auto Calibration

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836-1 Digital Conductivity TDS 0~1999ppm 0~19.99ppt Meter, ATC, 0~1999µS 0~19.99mS C/F

Regular Price $24.90

KC-318 Digital Pinless Non-invasive Inductive Moisture Meter Hard Soft Wood Drywall Masonry Scanner

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837-3 Pentype TDS / Salinity / Temperature Tester Water Quality Meter with ATC

Regular Price $23.90