SONOFF SNZB-02 Temperature And Humidity Sensor Real-time Sync Data Via e-WeLink App Work With SONOFF ZBBridge IFTTT Smart Home Note1: Some logistics channels (such as Aliexpress Direct/ Special Line-YW China Post Registered Air Mail/SF eParcel) are not allowed to carry batteries. In order to ensure that the goods can be sent out, we will take out the batteries and then deliver . Please understand.If you have any questions, please consult the customer service.Note 2: SNZB-02 must be used with Zigbee Bridge.SONOFF SNZB-02 is a ZigBee temperature and humidity sensor that can seamlessly work with SONOFF ZigBee Bridge to track and record the temperature and humidity change in your home, which all real-time readings can be checked on eWeLink APP. Better still, you can set a condition in the smart scene that is the fan is turn on/off when the temperature reaches the limit value, or the dehumidifier in your room starts working once the humidity is over higher, helping prevent the growth of mildew and allergens. You can set a smart scene to trigger alerts through events like high/low temperature, high/low humidity conditions and more.Device sharing function makes your kids, family, and even the neighbors informed about the environmental conditions of your home with their mobile phones. The camera feature is available on the sensor to make you know what’s go on in your home. It reserves time for you to take actions if a fire hazard arises. It is a battery-operated sensor that can be placed in any corner of your house to monitor the room temperature and humidity. Installation without any tool, simply stick the sensor on the surface of the wall or device and see it nicely to work for you! Specifications: Battery: 3V(CR2450); Wireless protocol: Zigbee (IEEE 802.15.4); Material: PC; Dimension: 43X43X14mm Real-time Temperature & Humidity Feed