ZigBee temperature and humidity sensor can detect real-time temperature and humidity indoors, and it is convenient for you to check the data or control the sensor in the mobile APP . With alarm function, it is safer and more humanized to use. It is small and light, suitable for home, office, store, warehouse and other indoor places. Enjoy your smart home with it?! Features: ZigBee temperature and humidity sensor can detect temperature and humidity in real time inside. With alarm function, it is safer and more humanized to use. Compatible with 'SmartLife' APP, can be easily controlled by mobile APP. Checking current data and 30 days of historical data storage. Intelligent linkage scene: Add more than one device in the APP in turn, creating an intelligent scene to control the smart home more flexibly. Mini size and concise appearance, portable and lightweight. Just place it on the desk or stick it on the surface via the double-sided adhesive tape. Easy to use, can be widely used in living room, bedroom, baby room, office, warehouse, store, restaurant and many other indoor places. CR2450 button battery powered, with low power consumption, long standby time. Easy to replace battery by removing the back cover. Unlike Wi-Fi temperature and humidity sensor, ZigBee type is more stable to use for the wide compatibility of ZigBee gateway to connect to more smart devices. Note: 1. A ZigBee wireless gateway is required to use this ZigBee temperature and humidity sensor. 2. Remove the battery insulation film inside the battery cover before use. Features: Color white Material: ABS Wireless technology: ZigBee 3.0 Transmission frequency?: 2.4GHz Wi-Fi Temperature measurement range: -10~50 (accuracy 0.3) Humidity measuring range: 0 to 95% relative humidity, non-condensing ( 3% accuracy) App download: compatible with SmartLife Built-in battery: 3V CR2450 Item size: 40 * 13mm / 1.57 * 0.51inch Item Weight: 18?g / 0.63?oz Package size: 6.3 * 6.3 * 1.7cm / 2.48 * 2.48 * 0.67inch Package Weight: 25g / 0.89oz