Review on 💧 Digital Water Quality Tester with Calibration Kit - LiZi pH Meter by Franciszka Agata (lo ᠌

In general, the device is excellent. Measures correctly. But there were a couple of moments that spoiled the impression. The first opening took about 15 minutes of fiddling with a knife. But there was no further problem. Maybe I just got an old batch. There is also a hole for calibrating with a screwdriver on one side, and a screen on the other. Screwdriver and bolt are small, it is inconvenient to calibrate alone. But probably. The measurements themselves are convenient, without problems. For 500-600 very satisfied