Features: 1.THREE-IN-ONE. The for smart thermometer sensor displays light, temperature and humidity in real for time. A really good complement for your for health with the real-time detector of house luminance,temperature and humidity with high precision. 2.AUTOMATICT CONTROL. Remote supervision the room luminance, temperature and humidity in APP with Bluetooth-compatible hub; With the for smart scensor linkage to house for smart switch to turn on or turn off the light automatically when in the morning, afternoon, or at night without manually turning on the light or trigger the switch. for Smart and much more convenience. 3.MINI BUT RACTICAL. A powerful and high efficency for smart household device, with 3 features, saving money, for time. No need to buy 3 different equipments. Fits well with for smart modern lifestyle with simple operations. 4.TWO METHODS. A Bluetooth-compatible for gateway hub is a must for this Bluetooth-compatible brightness temperature and humidity sensor when wireless remote control needed,and no hub required when for pairing into App only,featured as the control center for smart homes. 5.WIDE APPLICATIONS. Intelligently sense changes of temperature, humidity and brightness, and quickly connet with other devices to adjust. Very suitable for baby room, wine cellar, warehouse, flower room, bedroom,etc. Specifications: Material: ABS+Electronic Components Type-A: Bluetooth-compatible Version Type-B: ZigBee Version Size: Approx. 2.60x2.60x0.43in Weight: Approx. 56g Color: White Note: 1.Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes: 1 Piece for Smart Brightness Thermometer