STRANTROL SYSTEM3 CONTROLLER The Strantrol System3 controller continuously monitors swimming pool or spa water chemistry and controls the feed rate of sanitizing and pH control chemicals. The System3 also monitors water temperature, alarms at programmed set point conditions, activates an audible alarm and controls an automatic sensor wash. The System3 controller is a fully programmable solid- state controller with a digital display. It is the perfect choice for semi-commercial applications where data management is not required. pdf data sheet

Set Point Controller   MG/L   System3   System4   System5   System6   System7

CES Precision Controller