This pH combination electrode is made of sensitive glass membrane with low impedance.It can be used in a variety of PH measurements with fast response good thermal stability.It has the good reproducibility difficult to hydrolysis and basically eliminate the alkali error .In 0 to 14pH rangethe output voltage of the electrode is linear.The reference system which consist of the Ag/AgCl gel electrolyte salt bridge has a stable half-cell potential and excellent anti-pollution performance.The ring PTFE membrane is not easy to be clogged so the electrode is suitable for long-term online detection.

Q:How to use it in the Arduino water quality monitoring system?

A:This industial ph electrode can directly work with the sensor board fromAnalog pH Meter Kitto produce a long-term PH monitoring. And the output voltage feedbak is from 0 to 5v to indicate PH value from 0 to 14.