The E+H Liquisys CLM223 is a 4-wire panel-mount conductivity transmitter for all analog conductivity sensors in non-hazardous areas. It enhances operational safety through a continuous process check system, customized alarm configuration, and calibration plausibility checks. Modular design allows hardware and software upgrades at any time, including relays and fieldbus communication.

The transmitter supports conductivity, resistivity, and concentration measurement, plus ultrapure water monitoring per USP and EP. It offers numerous extensions like P(ID) controller and timer. Chemoclean automatic cleaning is triggered by alarm or limit switch. Communication options include 0/4-20mA, HART, PROFIBUS DP, and PROFIBUS PA. CSA certification available.