Danfoss Detector 850 electronic control unit

DEVIreg TM 850 version IV is an advanced thermostat with LED display used for outdoor useground and roof applications. The sensors provide information on both moisture level and temperature,thereby providing optimal control over the heating system.The DEVIreg TM 850 IV can handle up to two independent areas in any of the following combinations:- Single roof or ground system (1 system, 1-4 sensors).- Combination system: 1 ground system and 1 roof system (2 systems, 2-4 sensors in total, min. 1 sensorper. system).- Dual system: either 2 roof systems or 2 ground systems (2 systems, 2-4 sensors in total, min.1 sensor per system).In dual systems / combination systems it is possible to prioritize between the zones iffor example, only a limited power supply is available.