Smart Door Window Detector Tuya Wifi Door Contact Sensor for Home Security App Remote Push Notification

【Easy to Install】No Hub Required; No complicated installation tools are required. The sensor can be installed with double-sided adhesive tape or screws(included) in just a few steps., 【Security】 Push instant notification to your phone when door/window is opened or closed. so you don't have to worry about intruders or your baby going out of house without notice., 【App remote monitoring and voice control】 The smart door sensor can be controlled via the Smart Life app or TUYA Smart app, also works with Alexa or Google Assistant for voice control. Make your smart home life more convenient and easier., 【Smart Linkage and Device Sharing】It can also perform auto control together with other smart devices which are compatible with Smart Life. For example, open the light when the door sensor detects the door is open;, 【Low Battery Notice】Its powered by battery(not included), When the battery level is low, it will automatically remind you to change battery, never worry about running out of battery.