Surface mounted device for PT 1000 sensors up to 12m cable length, Temperature range -30 up to +100°C, 6-fold temperature sensor for HVAC, integrated controller, Selectable temperature controller (PI, Two-position, PWM), Temperature measurement by separate PT 1000 sensors, Limit values min/max, frost-/heat protection alarm, min/max memory, Cyclical sending of contact state programmable, Day-/Night-/Frost-/head protection operation cooling function, Status feedback by HVAC and RHCC status objects, Operation mode can be set via bit/byte objects, Desired value can be given by visualisation, e.g. MDT VisuControl, Surface mounted wiring box. Integrated bus coupling unit, 3 years warranty.