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Review on Extenuating Threads Digital PH Meter: High Precision Water Tester Pen for Household Drinking Water, Pool, and Aquarium PH Measurement (White) by Janie Dennis

Revainrating 2 out of 5

Questionable readings

I have read and re-read the instructions for calibrating this device and have never received a reading from the controller. It's clear and easy to read, and it's very easy to use, if imprecise.

Pros
  • Great for me
Cons
  • Makes me nervous