PH Pen Question

Discussion in 'Growing Marijuana Indoors' started by Kocf_owned, Sep 13, 2009.

  1. I read recently that you should never let the probe on your pen dry...i really do hope this is not true cuzz mine has been dry for quite some time now lol..I have a Milwaukee one.....does it damage it some how..and if so how badly do you think mine is after 2-3 months of being dry

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