Calibration is off.Some one sent me a how to video if u see this please send again
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Thank u.I found out how important it is to use distilled water and let dry before testing.Readings were crazy I get stable readings now
It’s also a good idea to use a q-tip to clean the probe after each use. Not sure if that kit comes with storing solution, but if not, put 4.0 solution in the cap to the fill line to store in.
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