4 in 1 Wifi Temperature & Humidity & Illuminance Monitor 1. 4 in1 Wifi Temperature&Humidity&Illuminance&Time Clock.User can view the temperature humidity lux from anywhere,anytime. 2.Voice Control:After connecting Amazon Alexa and Google home, you can know the current temperature humidity by voice. 3.LCD screen displayThe sensor uses LCD as the display of temperature,humidity and lux, and the display of time and date is added on the screen. Time and date are automatically calibrated. 4.Alert:send push notifications via app and the product will make sound when temperature or humidity goes out of preset value,no additonal fee..Export max 30 days of temperature/humidity data to your email for fee remotely, 5.Data Export:We can view the temperature humidity history via the graph or import to your email address 6.Alarm Clock:you can set a maximum of 5 alarm clocks. 7.To save battery.the temperature and humidity are not real time update,so the value on the LCD display and the value on the app may be different.user can know what is the last time update from the app interface. Specification: Power: AA LR6 1.5V * 2PCS (Not included) Storage Temp: -10 60 (14F140F) Storage Humidity: 0100%RH(Non condensation) Working Temp: 0 50 (32F122F) Working Humidity: 0100%RH(Non condensation) Light Intensity Range: 09999Lux Bluetooth Pairing network:2.4GHz IEEE801.11b/g/n Wireless Frequency: 2.4GHz Wi-Fi Distance: 40M Battery life: 6 months Size: 84mm x 55mm x 32mm