working. Try calibrating it with the supplied calibration solutions. I don't think it comes close compared to the two different pH strips I use, my pH strips read between 6.8 and 7. This meter reads me 7.48 after calibration.
Digital PH Meter Tester - Tiaoyeer Water Quality Tester With ATC, 0.01PH High Accuracy, 0.00-14.00 Measurement Range, 0.01 Resolution For Drinking Water, Aquarium, Swimming Pools, Hydroponic
8 Review
Accurate And Versatile Digital PH Meters For Food, Brewing, Hydroponics, Pools And More!
7 Review
Portable digital multimeter with sound continuity and thermocouple (electric tester) LTX DT-838
7 Review
TDS water quality tester - TDS water hardness meter (portable digital salt meter for water analysis)
9 Review
π Enhanced Precision with Backlit Professional Manometer for Differential Ventilation
6 Review
π‘οΈ Continuous Temperature Monitoring with Relative Humidity Integration
4 Review
π§ UEi Test Instruments DAFM3B Digital Multimeter
6 Review
Portable Handheld Manometer π for Accurate Pressure Differential Measurement
5 Review