Tenky Tuya Bluetooth Smart Brightness Temperature And Humidity Sensor Real-time Remote Control Light Thermometer Need Gateway Description: 100% Brand New and High Quality 1.The smart brightness thermometer senses the changes in the ambient light,temperature and humidity in real time;Actively report to the user end by Smart Life App as the built-in Bluetooth protocol.A really good complement for body health with the real-time detector of house luminance,temperature and humidity with high precision. 2.Clear data change curve display as day,month and year of luminance,temperature and humidity in App helps monitor the house condition for multiple purposes. 3.Remote supervisionof room luminance in App with Bluetooth hub required for high learning efficiency of kids while doing homework with smart scene linkage to house smart switch to turn on the light automatically. 4.An extremely powerful device with mini design for three features all in one,saving money and energy with no need to purchase three different devices for independent use. 5.A Bluetooth gateway hub is a must for this Bluetooth 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.Bluetooth hub is not included in the package. Specifications: Product Name:Smart Brightness Thermometer(Bluetooth Version) Battery Model:CR2032 button battery Wireless Protocol:Bluetooth Temperature Measurement Range:0-50 Humidity Measurement Range:0%-99RH% Temperature Accuracy:±0.3 Humidity Accuracy:±3RH% Light Detection Range:0-999lux Light Perception Range:0.01lux Product Size:66*66*11mm Screen Size:45*45mm Product Weight:45.0g