Features: Large LCD Display: Large square screen allows you to browse the entire screen easily, making the visual center more clear, more convenient for elderly and children. APP Remotes Monitoring: After connecting the Tuya APP, you can check the data on your mobilephone easily, even if you are far away from home. Temperature&Humidity&Light Display: This can detect temeprature, humidity and light for you at the same time. Alarm Clock Function: This function can replace a traditional alarm clock to wake you up at the time you set. Wide Applications: This sensors can be widely used in your home, office, hotel, living room, bedroom, etc. Specifications: Material: ABS Power: 2 * AA batteries (NOT INCLUDED) Working Temperature: -10& 8451;-60& 8451;(14& 8457;-140& 8457;) Working Humidity: 0%-100% Storage Temperature: -10& 8451;-60& 8451;(14& 8457;-140& 8457;) Storage Humidity: 0%-90% Package size: 98 * 88 * 53mm / 3.9 * 3.5 * 2.1in Package weight: 95g / 3.6ounce Packing list: 1 * Temperature Humidity Sensors