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Pen Type pH Meter- pH-009 (I) A

How to use Pen Type pH Meter- pH-009 (I) A Remove the protective cap First clean the electrode with distilled water (available in most grossary stores), and dry it with filter paper Turn on pH meter by “ON-OFF” switch located on the top of battery case Immerse the pH meter electrode in solution up to[Read More]

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December 2016
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