Combi Electrode Install Video
In this video from Aquaread, watch a demonstration of combi electrode installation. The combi electrode measures pH and ORP (oxygen reduction potential). ORP is a measure of the potential for reduction chemical reactions to take place. It's a standard parameter included with the AP-7000 probe (shown in the video), AP-5000 and AP-2000.
Aquaread multiparameter water quality meters are used for a wide range of applications including water monitoring at wastewater treatment plants; the higher the OPR at the end of the process, the cleaner the water.