WiFi Smart Door Window Alarm Sensor Wireless Remote Control Door Sensor Compatible with and Home for Homes Garages Sheds Apartments

• Ultra-long standby time. 2 AAA batteries for power supply (not included), of which standby time last for 5 years.
• Can work independently without hubs and is compatible with and home.
• By connecting WIFI (2.4G only) and mobile phone connection, alert will be pushed to mobile phone via APP when the abnormal status detected.
• Free APP mode, for Tuyasmart, one-click WiFi or AP mode to connect wifi.
• Long transmission distance, up to 45 meters, and strong network signal.

Specifications: Battery: 2 x AAA (not included). Standby current: <5uA Protocol: IEEE 802.11b/g/n Wireless range: 45m Operating temperature: -10 °C ~ 40 °C (-14 F ~ 104 F) Working Humidity: 20%~85% Storage temperature: -10°C ~ 60°C (-14 F ~ 140 F) Storage humidity: 0% to 90% Standby time: 6-10 months Wireless Type: 2.4GHz Size: Main body: 9.3 x 4.0 x 20 cm/3.7 x 1.6 x 0.8 inches. Appendix: 9.3*1.3*2.0cm/3.6*1.3*2.0in Package Weight: 80g/2.8oz Common problem: The device is often offline even after it has been removed and added? Since the normal operation of the device largely depends on the stability of the network and its overload, please make sure that your network is in good condition. Or you can try using the mobile hotspot to connect to the device to check if the device is often offline due to network issues. In addition, it is recommended to update your app to the latest version, thanks for your support. Package List: 1 set x smart sensor. 1 set x sticker. 1 x user manual