Review on 📈 Dr.meter PH838 Digital pH Meter: Upgraded 0.01 Resolution, High Accuracy Tester with Backlit LCD Display, ATC, and Data Hold Function - 0-14pH Measurement Range by Mary Yergeau
Several readings of the same sample differ by an integer PH point.
This PH meter reads PH calibration buffer samples perfectly. The calibration went well, but failed to replicate readings from standard tap water. I used the same cup of tap water to get several readings and they started at 7.5. Then I took another and it showed 8.3 and a third and it showed 7.19. I left the probe in the water and it went up to 8.5. I still had the calibration patterns so I tried them again and they were all about where they should be. If you use this to read your PH you may run into some problems.
- Brilliantly made
- Sad device
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