TECEfloor radio-control base unit 24 V incl. transformer Base unit to receive signals from the TECEfloor radio-controlled room thermostats and connect TECEfloor servomotors (24 V). Signal input: CO heating/cooling, external system clock and dew point sensor. Output: pump controller and boiler controller, valve interval switching, screwless push-fit connections. Dimensions (W x H x D): 305 x 75 x 52 mm (4 zones) Dimensions (W x H x D): 370 x 75 x 52 mm (8 zones) Either for 4 zones (6 drives) or 8 zones (12 drives) Item number: 77440031