The СЛ23 unit is intended for use in industrial and laboratory water treatment installations outside the scope of government regulation for the provision of measuring instruments for continuous monitoring of one conductivity value and one temperature, indicating their current values, and for controlling the automation of installations via an electrically isolated active current output of 4-20mA and automation relays.The СЛ23 unit is a device for digital processing of parametric signals from a conductivity and temperature sensor, with a circuit for generating programmable current output signals of 4-20mA and controlling automation relays, housed in a plastic enclosure designed for DIN rail mountin