Wireless air quality temperature and humidity sensor for single installation 80x80x17/33mm or installation in the E-Design55 switch system. With LED display according to the room air quality. Also with warning signal. Supply voltage 230V. Standby loss only 0.6 watts. The radio sensor can be programmed into the following actuators and the Professional Smart Home Controller: F2L14, F4HK14, FAE14, FHK14, FHK61.