Review on 🐠 Smart Aquatic Fitness Monitor: Digital Calibration for Aquarium Swimmers and Drinkers by Keith Maynard

EC meter "looked good" but then I tried calibrating the PH meter, written instructions aren't something you can follow. The image in the ad shows a different procedure. I burned a gallon of PH 7 water previously tested on an expensive setup. The instrument finds the PH of the test solution, but when you put it back into the same solution, you get a completely different number, and in a few seconds it fluctuates as an integer from 6.86 to 7.5, the same for other solutions . The comments claim that this updated installation comes with 6 test packages, it had 3 and I used a few more of my own. You cannot trust the device or the technical support for this product. Do not buy.