Can a pH probe be used in mV mode to take an ORP reading?

Document ID

Document ID TE2841

Version

Version 3.0

Status

Status Published

Published Date

Published Date 07/10/2018
Question
Can a pH probe be used in mV mode to take an ORP reading?
Summary
pH mV verses ORP mV.
Answer
No, you need two different electrodes to measure pH and ORP.  pH measures the hydrogen ion concentration in your sample while ORP is the measurement of to what degree your sample is oxidizing or reducing. These are two completely different measurements.

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