The Polaris Watermatic C660 ORP/pH Controller is designed to automatically monitor and maintain both the sanitizer level and the pH balance in swimming pools, spas, or any circulating water system that requires water chemistry management. The C660 Controller is designed for easy installation and simple operation. It may be used with liquid feed pumps, granular feeders, tablet erosion feeders and ozone generators. It is not warranted or recommended for use with chlorine gas systems. The C-660 also provides digital readouts for both sanitizer and pH readings. Health Department approved for commercial applications
 

Selectable features:

Desired ORP/pH settings
Manual operation
pH and PPM calibration
ORP and pH timed or continuous feed
Adjustable alerts on ORP and pH
Maximum feed time option
Safety interlock between pH and ORP
Front face lockouts
Acid/Base feed

Watermatic C660 Digital ORP and pH controller, 120 volt