
Apera Instruments
Apera Instruments PH60-PW Handheld pH Meter Tester Kit with LabSen 805 ATC pH Electrode for Lab-Grade pH Measurement in Pure Water and Water Solutions with Low Ionic Strength

Apera Instruments
Apera Instruments Premium-Series PH60S Food pH Pocket Tester Kit, Swiss Spear pH Electrode, ±0.01 pH Accuracy, -2.00-16.00 pH Range (AI313)

Apera Instruments
17%OFF
APERA INSTRUMENTS AI209-T Value Series PH20 pH Tester Combo Kit, including the Maintenance Set, and a CalPod Solution Holder for Easy Calibration

Bluelab
9%OFF
Bluelab Combo Meter for pH, Temperature & Conductivity in Water - Easy Calibration, Digital EC/TDS/PPM Tester for Hydroponics & Indoor Plants (METCOM)

Bluelab
Bluelab METCOMPLUS Combo Meter Plus for pH, Temperature, and Conductivity in Water and Soil with Easy Calibration, Digital Nutrient (TDS/PPM) Testing Kit for Hydroponic System & Growing Indoor Plants

Apera Instruments
Apera Instruments AI102G GroStar Series GS2 Soil pH Pen Tester Kit for Direct Soil Test and Nutrient Solutions Test with Replaceable Swiss Spear pH Probe, Gen II

Apera Instruments
24%OFF
Apera Instruments AI311 Premium Series PH60 Waterproof pH Pocket Tester Kit, Replaceable Probe, ±0.01 pH Accuracy, Lcd display

Hanna Instruments
Hanna Instruments HI98129 Meter, pH/EC/TDS/Temp, 10" Height, 11" Wide, 20" Length

Bluelab
Bluelab METMULTI Multimedia PH Meter – Digital Handheld Hydroponic Nutrient and Soil PH Meter for Measuring PH Levels in Nutrient Solutions and Soil
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