The Planted Tank Forum - View Single Post - pH Meter
Thread: pH Meter
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Old 11-22-2012, 01:04 PM   #5
jpmfx
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please forgive the thread jacking... but
how often do these meters need calibrating (the milwaukees for instance)?
seems they come with hi/low sachets for calibration and that's it. Wondering about running costs.
thanks
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