Life can not be supported over 550mV water is classed absolute sterile at 600mV so i think you need to get that Null Plug and calibate your probe correcty using the GHL 220mV calibration fluid
Life can not be supported over 550mV water is classed absolute sterile at 600mV so i think you need to get that Null Plug and calibate your probe correcty using the GHL 220mV calibration fluid
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