Review on Accurate Digital pH Tester for Hydroponics: Enhancing Precision by James Lesley
Don't buy this junk!
Cannot be switched off. Inaccurate pH readings. Unable to calibrate due to intermittent button presses rendering this device unusable. Don't buy this cheap junk. I doubt I'll get my money back either. I get more confident readings with "color" charts of acid tests.
- pH meter
- weak
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