![CDATA[The wireless temperature, light and humidity sensor measures temperature, light and relative humidity and transmits the data wirelessly. It is battery-operated, with a service life of around 8 years, and uses two 3 V CR2032 batteries. The sensor has compact dimensions of 78 x 28 x 23 mm and can be easily mounted with adhesive strips or screws. The alarm conditions are adjustable and a test mode enables faster status queries. The measuring ranges are -10 to +70 °C for temperature, 0 to 188,000 lux for light and 0 to 100% relative humidity. A KNX RF S-Mode line coupler is required for connection to the KNX bus. The device should only be used in dry indoor rooms and operates in the frequency range of 868.3 MHz with a range of up to 100 m in the open field and approx. 30 m indoors. The protection class is IP 20.]]>