WiFi Door Window Sensor: Smart Detector, Tuya Alarm with Free Notification, Home Security System, Compatible Alexa Google (1 Pack)

【Real-time app alerts】Know when a door or window opens or closes through the Smart Life/Tuya app. Check entry activity from your phone while at home or away, helping you keep track of front doors, windows, garages and more. 【Direct 2.4GHz WiFi connection】Connect the WiFi door window sensor directly to your 2.4GHz home network with no extra hub required. A simple smart-home setup for users who want app monitoring without adding another gateway. 【Low-battery reminder】The app can alert you when battery power is running low, reducing the chance of an unnoticed power loss. Wireless battery operation also keeps installation clean, with no power cable running around the frame. 【Smart home automation】Use open or close status as a trigger for compatible Smart Life/Tuya scenes, such as switching on a light when a door opens. Also works with compatible Alexa and Google smart-home setups for status checking. 【Easy adhesive installation】Mount the two-piece contact sensor on a door, window or similar opening without complex wiring. Keep the sensor and magnet correctly aligned for reliable detection; suitable for homes, flats, offices and garages.