Tuya APP Smart Door Sensor 2.4GHz Wireless ZigBee Door Detectors for Home Office
Wireless protocol: Zigbee 3.0 IEEE 802.11. Model Number: Window Door Sensor. Wireless frequency: 2.4GHz. 1 X Door Sensor. Sub body: 50x13x16mm/1.97x0.51x0.63in. Main body: 82x27x23mm/3.23x1.06x0.91in.