
This meter is completely useless. I ordered 1 and when it arrived the box said 'calibrated ready to use'. Regardless of the solution, it only showed 6.4 ph. I checked with my Blulab ph meter that the solutions are between 4.0 and 9.6. I sent the broken meter back and got a replacement. Guess what. Solutions. Even after performing the calibration according to the instructions, the meter only shows 6.3. This is rubbish, don't waste your time or money!

Accurate And Versatile Digital PH Meters For Food, Brewing, Hydroponics, Pools And More!
7 Review

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

80 Pieces Water Test Litmus Strips Litmus ph Paper Soil Acidity Meter Liquid pH Tester 1-14
10 Review

π PH 1-14 Extensive Storage Testing Monitoring: Optimize Your Storage with Precise pH Level Monitoring
6 Review