Tuya Smart ZigBee Door & Window Sensor: A Tuya ZigBee wireless gateway hub is required to work with the door & window sensor, as well as a variety of ZigBee smart products. The gateway acts as a bridge and control center for smart homes, enabling seamless integration and intelligent automation for all connected ZigBee devices.Real-time remote monitoring: Receive instant smartphone notifications whenever the sensor detects the opening or closing of doors or windows, helping to keep your home secure at all times. Ensure the sensor remains connected to the ZigBee hub for continuous monitoring.Wide applications: Install the smart door/window sensor in various locations such as bedrooms, garages, bathrooms, gardens, or any area of your home. Easily integrate with other ZigBee sensors using a single ZigBee hub to enhance overall home safety and automation.Battery powered with low power consumption; features hall sensing technology and tamper detection; supports low battery alerts.Easy installation using double-sided tape (not included); simply mount it in the desired location. Create intelligent automation by linking with other smart devices for a fully connected home experience.Note: This product requires a ZigBee 3.0 gateway to function. Before adding this device, ensure that a compatible ZigBee gateway is set up and operational. 1. Power the device and ensure your mobile phone is connected to the internet. 2. Open the app, select "Add sub device" under the ZigBee intelligent gateway, and confirm the sub-device flashing mode. 3. Upon first power-on, press and hold the reset button for more than 6 seconds using a pin until the indicator light flashes, entering network pairing mode. Once the network setup is successful, the device will be ready for use.