1、High Refresh Rate: This room thermometer provides real time monitoring of indoor temperature and humidity, and it refreshes the data every 2 seconds. 2、Wide Range: This digital thermometer with high accuracy supports temperature measuring from minus 10℃ to 65℃, humidity measuring from 20% to 99%RH. 3、Large Screen: This digital hygrometer adopts large LED screen, providing great convenience for checking the data. 4、Memory Function: This digital hygrometer features memory function that will automatically record the highest and lowest temperature and humidity of the day. 5、Multi Function: This indoor thermometer also provides digital clock function, alarm clock function and weather forecast function. 1 x Room Thermometer (Battery Included)1 x USB Cable Item Type: Room ThermometerMaterial: ABSDisplay Function: Week, Temperature, Humidity, Comfort Face Expression, Alarm Clock, Weather Forecast Function.Temperature Measurement Range: Minus 10 to 65℃Humidity Measurement Range: 20% to 99%RHMeasurement Period: 2 SecondsTemperature Measurement Accuracy: +1℃Temperature Measurement Accuracy: +1℃Humidity Measurement Accuracy: ±5%RHPower Supply: CR2025 Button Battery 80mAh (Battery Included)Product Size: Approx. 12.5 x 7.4 x 1.7cm / 4.92 x 2.91 x 0.67in ( Manual Measurement, Slight Error May Exist )Weight: Approx. 119g / 4.20oz