Tuya zigbee smart home temperature and humidity sensor with led digital hygrometer thermometer screen works with smart life app(3pcs) The product is shipped based on the color or size of the main image of the product page. ur:3pcs 100% New and High product needs to be used with ZigBee3.0 gateway, which is not included in the product 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 App as the built-in ZigBee 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 mon the house condition for multiple purposes,as heating control,humidifier and lighting on/off in a preset time for whole house intelligence with infinite sense of wisdom. 3.Remote supervision of room luminance in App for high learning efficiency of kids while doing homework with smart scene linkage to house smart s to turn on the light automatically when the sun goes down or back from whole-day work without manually turning on the light or the s in app every day for added convenience. 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,fits well with smart modern lifestyle with simple operations. 5.A ZigBee gateway hub is a must for this ZigBee brightness temperature and humidity sensor,which is much stabler than WiFi router and featured as the control center for smart homes, playing an irreplaceable role for all ZigBee products,together with the whole intelligent linkage of your house. s: Product : ness (ZigBee Version) :CR2032 button Wireless Protocol:ZigBee Temperature Measurement Range:0-50 Humidity Measurement Range:0%-99RH% Temperature :0.3 Humidity :3RH% Detection Range:0-999lux Perception Range:0.01lux Product Size:66*66*11mm Screen Size:45*45mm Product Weight:45.0g Package Included: Thermo-hygrometer*1 User manual*1 sticker*1 Soft magnetic sticker*1 : product needs to be used with ZigBee3.0 gateway, which is not included in the product