ABB 2TKA00004035 is an Impressivo recessed room and floor thermostat with digital display, supplied with a floor sensor and without a frame, in white RAL 9016. The controller uses OpenTherm communication with a 3/4-wire resistance-sensor input, P control characteristic, and a weekly clock with seven switching programmes. Contacts are rated 16 A at up to 250 V with normally open configuration, IP21 protection, and 0.05 W standby power (class I). The 85 by 85 by 38 mm enclosure suits standard flush boxes.