Use this chlorine controller for in-line control and measurement of free chlorine ion concentration. This microprocessor-based controller continuously displays the current reading and relay status. Relays are triggered when the concentration reaches high or low setpoints.

A separate alarm relay lets you connect controller to warning lights or buzzers to signal conditions. Use the current output to send data to a recorder or computer for permanent records.

Calibrate this controller from two to five points. Manually activate relays to test pumps, valves, alarms or other process equipment. Security code prevents accidental changes to setup parameters.