CL level controllers - the device is designed to measure CL (chlorine) water, pool water.
Chlorine meter (CL) for free and total, organic or inorganic chlorine. Measurement range: 0 ÷ 10 ppm (0 ÷ 10 mg /l).
To control the CL level, controllers (CL level control) and sensors (CL meters) are used.