DIN rail mounted frost protection thermostat with two sensors. Frost protection thermostat suits for the control of frost protection in outdoor areas, ramps, roofs and rainwater systems. Both two sensors are used for frost protection in outdoor areas and one sensor for frost protection in rainwater systems. Adjustment range of thermostat is -30 … +15 °C, IP20. Operating voltage 230 V. Maximum load 16 A. Sensor 47 kohm / 25°C. Length of sensor cable 4 m (extendable up to 25 m).