Review on ๐ NewestใTDS Meter: NinHappy with High Accuracy, 0-9999 Ppm, Ideal for Aquariums by Jared Coleman
Cannot calibrate
Everything seemed to work fine until the battery was replaced. When I put it in the calibration liquid after changing the battery, it wobbled about 600 points and there was no calibration screw on the back. I didn't think to check it when I got it. Maybe I just got an unmounted copy. Just stop by again when you order one. This is one of the most popular.
- CHECK WATER PURITY
- High price
New products
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