【Real-time temperature and humidity feedback】Works with SONOFF ZigBee bridge, you can remotely monitor real-time temperature and humidity on your phone when you are away from home . 【Smart Scene to Trigger Devices or Alerts】You can set a smart scene to turn on/off connected WiFi devices or trigger alerts through events such as high/low temperature , high/low humidity conditions, etc. 【Camera functionality】Add a camera and activate the camera functionality on the sensor to know what is happening in your home. 【Share Control】Just share the sensor with your family on eWeLink APP and they can directly check this temperature and humidity on their mobile phone without having to pair it. 【Simple Design and Easy Installation】This is a battery-operated sensor with low charge notification to your mobile, which adopts 3M adhesives on the bottom to easily install it in any corner of your home. Number of shipments : 1pcs (without battery)