1、Real Time Monitor: Keep your home safe and secure with this smart window sensor, which detects when a window is opened or closed, and push notification to your phone. 2、Stable Connection: With the help for ZigBee technology, door sensors come with stable connectivity and fast response to ensure you receive security alerts in time. 3、Long Battery Life: The batteries provide a long lasting power supply, ensuring the door sensor operates efficiently, environmentally friendly, to provide you with lasting security. 4、Wide Compatibility: Wifi door open sensor is compatible for tuya smart home devices, making it easy to provide a smarter and more convenient home life for you. 5、Easy Installation: No need for complicated wiring. This wireless door sensor can be easily installed using adhesive tape or screws without professional personnel help, save time.