1、When you leave the house, it will send you a notification message when the door/window is opened or closed so that you can spot the intruder in time. 2、Easy to install, use double‑sided tape to install the sensor, and use application Smart Life, support for Google Play download, to add a device to detect the status of the door/window. 3、It is very convenient to use for doors, window, cabinets, drawers or any place that needs to be notified. You can also share the device with your family and track the history of sensor activity. 4、For Tuya Zigbee door sensor needs to be used in conjunction with for Tuya Zigbee gateway, which can realize intelligent linkage with other for Tuya‑supported products. 5、The door status is open or close, notification information can be pushed through the mobile phone, and also has anti‑disassembly alarm and low battery alarm function. 6、Compatible with for Google Assistant and for Alexa, just use your voice to control connected devices through for Alexa or for Google Assistant. It can also perform automatic control with other smart devices compatible with Smart Life. Item Type: Door Sensor Material: ABSPower Supply: 1 x CR2032 Button Battery, 100mAh (Built-in Battery Shipped) Working Time: 2 Years Wireless Standard: Zigbee802.15.4 Standby Current: ≤5uA Working Current: ≤60mA Working Temperature: -10℃-55℃ Working Humidity: 10%-90%RHHow to Use: 1. Connect the door sensor to the for Tuya Zigbee gateway 2. Connect the door sensor to the mobile phone 3. Install the door sensor on both sides of the door or window. When someone opens the door or window, an alarm message will be sent to the phone 1 x For Tuya Zigbee Door Sensor (Wireless Transmitter x 1, Magnetic Stripe x 1) 1 x Adhesive Sticker 1 x Reset Pin 1 x Instruction