Review on 📊 Automatic Calibration pH Meter - 7Pros High Accuracy Pen Type Water Quality Tester with ATC, 6 pH Calibration Packets Included - Best Tool for Testing pH of Hydroponics, Kombucha, Wine, Drinking Water by Angelica Obegi

Bought this in April and the product worked fine until the batteries that came with it broke and ruined the product. It was outside of my returns window so I emailed the company to see if they could help and they did. I got a replacement PH meter that works fine but I checked the batteries before using them and they were rusty too so I removed the batteries that came with it and put in the new batteries I bought. I didn't want to repeat it again. So I recommend opening the meter to see the status of the batteries and replacing them if necessary. Overall rating 4 stars.