1. Double functions: Thermometer and hygrometer.
2. Simultaneous measurements of temperature and humidity indoors or outdoors.
3. Comfortable picture and words display.
4. Record the highest/lowest temperature and humidity
5.Can stand on desk and hanging on the wall.
6.Can set highest/lowest temperature and humidity warning.
7.Can chose the Celsius degree or Fahrenheit degree as the measurement units.
Bettery: 2*1.5V AAA

1.temperature range: -50 Celsius degree to 110 Celsius degree;
humidity range: 20%-99%
2.Temperature accuracy:1 Celsius degree,(-20 Celsius degree--60 Celsius degree), 2 Celsius degree(Other)
Humidity accuracy: A?5%(20%-90%)
Resolution: A?0.1 Celsius degreeC/A?1%
Storage conditions: -20 Celsius degree to 60 Celsius degree / 20%RH--80%RH.