Wireless Door Window Sensor

Features:
* Download app TUYA from App Store to add the device to detect the status of your door / window. Home security in your hand all the time.
* Simply attach one piece to your door or window, and attach the other piece to the door or window frame.
* Batterypowered, convenient for you to replace the battery and easy for you to install with stickers.
* Ideal intrusion warning for homes, apartments, mobile homes, dorms, offices, hotel rooms, garages, etc.
* Low-consumption design, which can make it work long time.
* Simple design with a compact size, elegant and fashion.
* This sensor needs to work with Amazon alexa, Google assistant, IFTTT.