SONOFF SNZB-02 Zigbee Temperature Sensor Smart Home intelligent linkage Works With Alexa Google Home eWelink APP Description: Monitor indoor temperature and humidity. Sync the real-time temperature and humidity reading to APP. Can trigger Wi-Fi devices in smart scene. Add a camera to ensure you know any emergency in your home. Low-battery notification. Quick and easy to install. Specifications: Battery: 3V(CR2450); Wireless protocol: Zigbee (IEEE 802.15.4); Material: PC; Dimension: 43X43X14mm Real-time Temperature & Humidity Feedback Measure the temperature and humidity in real time, and sync data to your mobile phone in no time. Improve the Comfort Level of Your Home Wish your home always keeps a favourable temperature and humidity? Enable the smart scene to make the fan automatically turn on when the room temperature reaches 28and the humidifier automatically turns on when the room humidity is below 45%RH. Install In No Time Adopts 3M adhesives on the bottom of the sensor for flexible and fast installation on any surface of your home. Low-battery Notification You will get a notification of low-battery level when the battery life gets 10% remaining. Share Once, Check Together Simply share the sensor to your family and they can directly check the temperature and humidity on their mobile phones without pairing it