The digital thermometer can measure the indoor and outdoor temperature and humidity in real time. With large LCD screen, it is easy to read even at night. Equipped with a wall mount and a retractable bracket, it can be easily installed on the wall or placed on the table. The measuring range of indoor temperature is 0-60 degree Celsius (32-140 degree Fahrenheit) and that of outdoor temperature is -40-60 degree Celsius (-40-140 degree Fahrenheit). Measuring range of humidity is 10%-99%. It is accurate with deviation of 1 degree Celsius/5 and it automatically updates teh data every 60 seconds. With the button on the top, it can be switched from Celsius to Fahrenheit. It is suitable for nurseries, bedrooms, home, incubators, basements, warehouses and greenhouses. Item Name: Thermometer Material: ABS Battery: 2 x AAA Batteries (Not Included) Frequency: 433.92MHz Update Rate: 60 Seconds Indoor: Temperature Range: 0-+60 Degree Celsius Temperature Accuracy: +/- 1 Degree Celsius Humidity: 10-99% Humidity Accuracy: +/- 5% Outdoor: Temperature Range: -40-+60 Degree Celsius Temperature Accuracy: +/- 1 Degree Celsius Humidity: 10-99% Humidity Accuracy: +/- 5% Features: Accurate, Easy to Read, 2 in 1 Size: 7.5cm x 6cm x 2cm/2.95" x 2.36" x 0.79" (Approx.) Notes: Due to the light and screen setting difference, the items color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Thermometer Host 1 x Sub Thermometer 1 x User Manual