HM Digital Review: HM Digital PH-200 Waterproof pH and Temperature Meter. I assume that most of the folks who have broken this quality probe or complained about how fragile it is have never used a quality/accurate PH meter before. The nature of the beast requires that the sensor be made the way this one is, and also that it remain wet with a storage solution at ALL TIMES! There is no gray area here folks! If you fail to rinse the end of the probe off with a spray bottle of distilled water after each use and then ... Read more »
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