Review on VIVOSUN Digital PH Meter Tester Pen - High Accuracy 0.01 Water Quality 🌿 Tester with 0-14 PH Measurement Range for Household Drinking, Pool, Aquarium - ATC, Army Green by Cathy Donaldson
Unreliable pH meter
Right out of the box I was skeptical about the accuracy and arguing about the calibration but decided against it as the unit is new. He gave me a reading that was constant for about a week, then he went to possum and showed me a reading that starts at about 2.0pH to 0 and 16.00 when you turn it on. Switch off for a while to come back and get regular readings again. 🤷
- Wide range
- Questionable purchase for seniors
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