Review on π Enhancing Accuracy and Precision in Household Hydroponics: Advanced Resolution Measurement Solution by Steve Brethorst
Don't waste your time
Broken after 3 months of use. Wasn't accurate at all, even when tested and calibrated with the solutions provided, the readings were wrong. Now the pen won't turn on and if it does, nothing on the screen is readable as it stays at zero.
- pH test
- Slightly torn
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