Main Features1. The smart brightness thermometer detects changes in ambient light, temperature and humidity in real time; Actively report to the end of the user by smart Life App as the built-in Bluetooth protocol. A really good complement to a healthy body with a real-time home detector of luminance, temperature and humidity with high precision.2. Clear data change curve display as day, month and year of luminance, temperature and humidity in the APP helps you monitor the status of your home for multiple purposes, as heating control, humidifier and lighting on/off at a preset time for the intelligence of the whole house with an infinite sense of wisdom.3. Remote supervision of room luminance on the APP with the Bluetooth hub required for children's high-efficiency homework learning with smart connection of the scene to home smart switch to automatically turn on the light when the sun drops or returns all-day work without manually turning on the light or triggering the switch on the APP every day for more convenience.4. Extremely powerful device with mini design for three functions all in one, save money and energy without having to buy three different devices for self-use, fits well with smart modern lifestyle with simple operations.5. Bluetooth gateway hub is a must for this Bluetooth brightness temperature and humidity sensor when you need a wireless remote control, and it does not require a hub when for pairing only in the App, described as a control center for smart homes. SpecificationsProduct Name: Smart Brightness Thermometer (Bluetooth or Zigbee Version)Battery Model: CR2032 Button BatteryWireless Protocol: Bluetooth or ZigbeeTemperature Measurement Range: 0-50CMhumidity Measurement Range: 0%-99RH %Temperature Accuracy: 0.3Humidity Accuracy: 3RH %Lights Detection Range: 0-999luxLight Perception Range: 0.01luxProduct Size: 66*66*11mmScreen Size: 45*45mmProduct Weight: 45.0gPackage IncludedThermo-Hygrometer*1User Manual* 1Wall Sticker*1Soft Magnetic Sticker*1Hi, guys, thank you for visiting my store. There are so many useful and cheap items in our store. If you need more of this item, you can use . We will give you the best price. Leave a message!