Features: [Indoor Temperature and Humidity Monitor] Seamlessly work with ZigBee Bridge to track the temperature and humidity change in your home, which all real-time readings can be checked on eWeLink APP. [Smart Scene] Can trigger Wi-Fi devices in smart scene. 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. [Sync to APP] Device sharing function makes your kids, family, and even the neighbors informed about the environmental conditions of your home with their mobile phones. [Remote Monitor] Add a camera to ensure you know any emergency in your home. 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. [Quick&Easy to Install] 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 [Low-battery Notification] The unit is battery-operated that your mobile phone will receive a low-battery notification when the remaining battery level is less than 10%, maybe it's time to change the battery. [Wide Application] Widely applied for reptiles, plant grow tent, incubator, greenhouse, terrarium, car, cigar humidor, etc. Note: *ZigBee Bridge is required, and it is sold seperately. *The device can work with other gateways supporting ZigBee 3.0 wireless protocol. Specifications: Model: SNZB-02 Material: PC Color: White Battery Model: CR2450 (3V) Wireless Connection: ZigBee (IEEE 802.15.4) Item Size: 4.2*4.2*1.4cm / 1.65*1.65*0.55in Item Weight: 22g / 0.77oz Package Size: 4.8*4.5*2cm / 1.88*1.77*0.78 Package Weight: 27g / 0.95oz Packing List: 1 * Temperature and Humidity Sensor 1 * User Manual(Multilanguage) 1 * Double-faced Adhesive Tape 1 * Button Cell(CR2450)