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I just added a redox card to my P3, now i was told that the probe doesn't need calibration because it is usually factory calibrated but i am getting a reading -89 on the P3 so i am assuming that it does need to be calibrated?
GHL Support
16.04.2010, 19:22
Every probe has to be calibrated except the temp probe before use it.
i figured that but the distributor said it doesn't have to......so i guess i have to get calibration fluid
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