Review on 🌊 Accurate Water Quality Testing with KETOTEK 2-in-1 PH and TDS Test Meter: Hydroponics, Aquariums, Drinking Water, RO System, Fishponds, and Pools by Luca Washington

I bought this for a cheap pH meter but I tested the free TDS meter that came with it before calibrating. Luckily I had an old reliable HM Digital TDS-EZ meter to compare to this one. And mine has recently been compared to other reliable ones, like the free ones that Zero Water supplies with their jugs. This junk, but nicely packaged. The readings are way too low. I didn't bother to calibrate the pH meter as it also seemed just as cheap and flimsy. (It earned a 10.6 for nearly pure reverse osmosis water out of the box.) But it's all nicely packaged and presented to compensate for the quality of the contents.