The Suevia 1021386 is an original equipment manufacturer (OEM) lime protection sensor designed to prevent limescale deposits in Suevia drinking bowls and water systems. This sensor is installed in the water supply line, where it detects water hardness. If the water hardness is too high, the sensor automatically switches off the water supply, effectively preventing limescale buildup and ensuring the longevity and optimal function of watering equipment. It operates at 230 V with a power consumption of 10 W and features a G 1/2" connection.