PH and Thermometers

Skin Ph Acdimeter 0.00-14.00 ATC PH Meter For Skin Fruit Meat Lab Swimming Pool ,Easy Reading - BLUE_PH-6118L

7 In 1 Ph/free Chlorine/orp/ec/tds/salt/temp Ph Meter Swimming Pool Salinity Tester Ip67 Waterproof f26

Hanna Hydroponic Waterproof Pocket pH/EC/TDS/Temperature Tester

10 in 1 Water Quality Tester PH/TDS/EC/SALT/TEMP/S.G/ORP/H2/Fertile/Resistivity Tester Pen For Aquarium Swimming Pool ,Easy Reading - WITH BACKLIGHT_X

201T-F All-in-one pH Electrode, ATC, BNC/RCA Connector, Polycarbonate Body AI1302

Ohaus ST10C-B Conductivity Pen Meter, Waterproof, 0-1999 μs/cm CA2

Hanna Instruments HI98129 Low Range Combo pH, EC, TDS and Temperature Meter

Hanna Instruments HI98118U GroLine Waterproof Hydroponic pH Tester

Hanna HI98107 Checker Handheld Waterproof Pocket pH Tester for Aquariums, Pools, Ponds

Industrial Strength Water Pen Analyzers Water Tester With Backlits Screen For Dark Environment Contaminant Detection

Oakton WD-35462-11 EcoTestr CTS Pocket Conductivity, Salinity, and TDS Meter CA3

Hanna DiST 5 EC/TDS/Temperature Tester (0 to 3999 µS/cm, 0 to 2000 ppm) HI98311