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pH / temperature / conductivity / TDS meter, pen-type, pH = 0.00 … 14.00, T = 0 … 50°C, EC = 0 19990 µS/cm, TDS = 0 19990 ppm

pH / temperature / conductivity / TDS meter, pen-type, pH = 0.00 … 14.00, T  = 0 … 50°C, EC = 0  19990 µS/cm, TDS = 0  19990 ppm

2 Pack pH Meter and TDS Meter, 0.05 pH High Accuracy Tester Pen, ± 2% Readout Accuracy Digital Water Quality Filter Pen, 0-9990ppm, Ideal Water Purity Test for Drinking Water, Aquariums, Hydroponics

PH Meter & TDS Meter Digital Water Quality Tester 0-14 PH Meter Tester 0-9990ppm TDS & EC LCD Water Purity ppm Aquarium Filter, Size: PH Meter + TDS

EZDO TDS5031 TDS Pocket Tester (0-19990 ppm;±1%FS)

Digital pH/TDS/Temp Meter, 3 in 1 Pool and Aquarium, pH Meter for Water Household Drinking, High Precision Water Quality pH Meter Lab Ph Meters: : Industrial & Scientific

Ph Meter Water Quality, Pool Tester Ph Measurement

Buy PH Meter 4 In 1 Pool Thermometer Water Tester, Digital PH Meter With ATC Function, PH Value T Temperature Water Tester at Aliexpress for . Find

PH Meter 4 In 1 Pool Thermometer Water Tester, Digital PH Meter With ATC Function, PH Value T Temperature Water Tester

5 in 1 TDS Meter PH Tester, 0.01 High Accuracy Digital PH Meter for Water, PH/TDS/EC/Salt/Temp Tester, PPM Meter Water Tester for Drinking Water, Hydroponics, Plants, Aquarium and Pool: : Industrial

EEEkit Digital PH Meter TDS EC Meter Combo, 0.01PH Accuracy Water Quality Test Pen, 32 -131 TDS EC Temperature Tester

Waterproof Ph Pen Meter Protable Digital Ph Tester For Aquarium Pool Water Wine Urine Laboratory Automatic Calibration 30%off - Ph Meters - AliExpress