Fangrui Product Details Zigbee Smart Switches Once The Device Is Connected To The Zigbee Gateway, The Device Can Be Intelligently Controlled Group Control Multi-range Use Intelligent Products Can Be Grouped In Different Rooms To Achieve Group Control Functions Intimate Protection Baby Health Accurately Measure Indoor Temperature And Humidity In Real Time, Providing Comprehensive Care For Your Baby At Any Time Applicationremote Controlremotely Monitor The Indoor Environment In Real Timeanytime, Anywhere Via Smartphone Low And High Temperatures Remind Preset The Temperature In The App, It Alert You When The Temperature Reaches The Limit, And Then You Can Take Appropriate Actions To Of Your Cute Pet And Feel As Comfortable As Product Model: Th08 Voltage: Dc2.5v-3v Battery: Cr2032 Wireless: Zigbee3.0 Temperature Range: -9.9-60humidity Range: Rh-rh Temperature Measurement Accuracy: 1humidity Measurement Accuracy: +rh Note: The Device Does Not Come With Batteries, Customers Need To Prepare Their Own 1 X Cr2302 Batteri