Review on Sper Scientific 850051 Pen Large by Mark Lodge
The resolution is 0.1 pH, not 0.01 pH.
I am giving 3 stars because although the product description says it is an "ATC 0.01 pH pen" this is incorrect as the resolution of this pen is 0.1pH. For a pH resolution of 0.01 you need the Sper part number 850052. This pen is part number 850051.
- IP65 waterproof case, if accidentally dropped into the water, it will float.
- There are other interesting options.
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