Temperature Measurement Range: Measuring temperature range from -20 C to 60 C ( -4 F to 140 F). High accuracy: (1C/2F). Resolution: 0.1C (0.2F). Frost Warning: 4 C to 7.9 C (39F to 46.2F). When less than -20?, "LL.L" is displayed, if the values higher than 60?, "HH.H" will be displayed. Easy Reading Screen: Water resistant temperature monitor with large LCD display screen and big numbers help you easily read current temperature. Simple to Operate: The digital thermometer have only two buttons: On/ Off Button & C /F Button. Just press the on/off button to switch the thermometer on and then select Degrees or Fahrenheit. Multi-Choices to Place: Adsorption it to the refrigerator door with the back magnet, or hang it on the refrigerator shelf with the back hook, or just let it stand on the table-top. Widely Application: This Thermometer is great for both indoor and outdoor use, which can be used in refrigerators, freezers, kitchen, restaurants, room etc.