Smart Life app WIFI Door Window Sensor, 7/24 open/close detection, widely used for garage doors, windows, cabinets and drawers. Wifi connection with your box, no hub needed, Vandalism attempt alert Custom smart scenes, customize how your devices talk to each other: when the front door is opened at night, automatically turn on the welcome lights. When a backdoor is opened unexpectedly, trigger an alarm siren Powerful ewelink app, get notifactons and alerts through the Smart Life Tuya app, low battery alerts and view 5 recent group open/close history, share with your family Work with Alexa Assistant IFTTT Nest Siri, hands-free to check the real door status Description: 24 Hours Smart Security: The smart door window sensor provides 24-hour monitoring of your home. Use it on doors, windows, cabinets, drawers or anywhere you want to be notified when it is opened or closed. Capture every activity and send an alert to your Android or Apple phone. It is easy for you to keep an eye on your home security anytime, anywhere. Compatible with Alexa and Google Home IFTTT Nest: No hub required, just use your voice to control devices connected by Amazon Echo or Google Home, it can also perform automatic control with other smart device. For example, set a scene "Arrive Home", the sensor on the door that turns on the smart light when you arrive home in the evening. Enjoy Smart Lifestyle Easily: Wide gap performance allows up to 1cm when the door/window is closed. No annoying wires and battery powered (2xAAA battery not included), can be installed in any difficult situations by mounting tape or 3M screw (included). Monitor critical points in home, garage, shops or office, factory, etc. Besides, share the device with your family member and track the history of sensor activities. Specifications: Input Voltage: DC3V LR03 Quiescent Current: 10uA Alarm Current: 160mA Low Voltage Under Voltage: 2.7V WiFi: 802.11b/g/n 2.4G only!! Magnetic Control Distance: 15mm Working Temperature: -10-50 Working Humidity: Up to 95%RH Color: White Quantity Sold: 1 Set Product Size: 93*40*20MM Color Box Size: 100*58*25MM Function: 1. Door and window switch, remote notification via mobile APP 2. Simple and convenient to use 3. Support intelligent voice control such as Amazon Alexa, Google Assistant, etc. 4. Display power, alarm management, alarm query 5. Query history 6.WIFI: 2.4G can be connected to the router or mobile phone hotspot Please note: When the door/window is closed, the sensor body and magnet components should be installed within 10mm.becomeveryrich