Looking for Digital PH Pen

Discussion in 'Classifieds' started by Tersius, Apr 12, 2017.

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  1. GroenVissie
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    GroenVissie Green fingers

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    Prof, you mention 'drop test'. Same goes for KH, GH and more 'drop tests'?

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    GroenVissie, Apr 15, 2017
    #41
  2. Tersius
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    Tersius Green fingers

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    so...
    I don't know if the pen is really accurate , I am using my HTH pool test kit , to test my pH - the hth kinda shows me a more accurate reading via the color chart...especially after water has been aged , drops from around 8.2 to 7.8...


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    Tersius, Apr 18, 2017
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