Review on PrecisionPro: Enhancing Temperature Accuracy for Household, Drinking, and Aquarium Use by Seth Damain

I've wanted to buy these tools for a long time. I am a hydroponics hobbyist and wanted something inexpensive but accurate so the water would be good for my plants. The TDS/PPM meter is really simple, although the instructions on how to calibrate were helpful. Calibrating the PH meter was a bit more complicated but the instructions were really clear on how to do it. Now I am constantly checking my hydroponic system and my plants are thriving better than ever!