Large Clear LCD Screen -With a large clear LCD screen, it is easy to read temperature and humidity values. It is an ideal choice for interior decoration such as bedroom, kitchen and living room. [Accurate measurement] -Temperature range: -10C ~ +50C (14~158 F) / Humidity range: 10% ~ 99%). The temperature and humidity measurement accuracy is 1C/5%. [Maximum and minimum display] -The device displays the maximum and minimum values of temperature and humidity. It's easy to check for subtle changes in temperature and humidity every day. [C/F switch] - the button on the back of the thermometer. Short press to switch between Celsius and Fahrenheit. Long press to delete the highest/lowest temperature value. [Portable Design] - Desktop stand, hanging hole and magnetic folder design can be conveniently placed anywhere in the house. Powered by 2 AAA batteries (not included). Specification: Measuring range: temperature: -1050(14 to 158) Humidity display: 10% ~ 99% Accuracy: temperature: 1C; humidity: 5% Resolution: temperature: 0.1C; humidity: 1% Powered by the following equipment: 2 AAA 1.5 V alkaline batteries (not included) Display mode: LCD (Length x width x height): 10.5x9.5x2.5 cm / 4.13x3.74x0.98 inch Note: Please replace the battery when the screen becomes dim If you work in a high frequency radio field, for example near a cell phone, or if you receive a shock electrical, this may affect the performance of the device. Temperature and humidity accuracy: 1C / 5%. The value deviation is the acceptable range, which is normal. We recommend restarting the thermometer and replacing the batteries with new ones. At the same time, the thermometer should be placed for a certain time, do not touch the thermometer to see if the temperature value changes. Content of the broadcast: 1 x Indoor Thermometer Hygrometer 1 x User Manual