Review on ๐ KETOTEK Digital PH Meter: Accurate 0.01 PH Pen Tester for Water, Hydroponics, Aquariums & More by Rachel Mitchell
Inaccurate even after calibration
I used 3 test strips from different (manufacturers) and they were MUCH more accurate. Very high scores for that. So much so that I've drained my hot tub twice. I calibrated twice with the supplied solution and distilled water. After calibration, it had lower readings until I tried again. Don't waste money. Also, you need to leave it in the water until the gauge stabilizes, which may take a few minutes. It cannot be left floating, so you must always keep it. Test strips 2 seconds. Buy a good brand instead. Avoid cheap strips. you have been warned
- Fingers crossed
- Vulgarity
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