Review on 🔬 MEKBOK Digital PH Meter Tester: High Accuracy for Water Aquariums, Pools, Hot Tubs, Hydroponics, and Wine - Push Button Calibration, Large LCD Display by Heather Wilson

Totally inaccurate. The readings varied by up to 1.8 depending on the angle of immersion in my water. When it stabilized, it was drastically different from the tested and real drops. I soaked it in water overnight as instructed hoping it would be an easy cure, but the next morning it was even more sensitive to the angle of insertion. I would kill my plant if I relied solely on this gauge. They just missed my return window so it was sent to the bin along with the Rysantek name. For those of you using this as your only gauge, I would suggest testing it with drops or another verified gauge.