Feature Function: Use this scale thermometers to measure indoor or outdoor temperature and humidity Backlit LCD Information Display: The room thermometers displays temperature and humidity in real time or; Its backlit design helps to read the records easily even in dim light; This humidity meter is designed with large screen, you can use it to learn time, room temeprature and humidity. Made of superior material, the digital clock is durable and long lasting, is abrasion resistant and not easy to break. You can use it at many places, such as office, home, school, hotel room etc. Notice: Actual color may be slightly different from the image due to different light effect Please allow 1-3cm deviation due to manual measurement Note: The power plug is not included in the shipment. Description: Net weight: 335g Gross weight: 660g Size: 16* 2.3*16cm Material: ABS+PC Output mode: USB-A 5V-1A Input method: Micro USB 5V-2A Communication method: Wi-Fi( 2.4G)+BLE module, Bluetooth-compatible Accuracy: Temperature accuracy ± 0.5℃ Humidity accuracy ±2%RH Working temperature: -4℉-140℉ (-20℃~60℃) Handset: Charging interface: Micro USB Standby power consumption: 11uA Standby time: 6 months Power supply: 3.7V 400mA lithiums battery Communication frequency: 433.92MHz Communication distance: 80 meters (open outdoor environment) Accessories list: clock*1, lanyard*1, charging cable*1, manual*1, handset*1 (optional) Package List: 1 Set Wireless LCD Display Digital Thermometers Hygrometer