Door/Window SensorSKU: 9.09.01000168€50.00PriceQuantity*Add to CartBuy NowParametersWireless Technology : Zigbee Working Voltage 3V (CR2032 battery) Transmission Frequency 2.4 GHz Color White Dimensions:Main body: 52.6 mm x 26.5 mm x13.8 mm Working hum. 10%-90% RH Communication Protocol Zigbee HA 2.4G