Easy-to-read refrigerator thermometer: Larger digital display, larger LCD for clearer. Displays Celsius and Fahrenheit temperatures with high accuracy (1C / 2F). Alarm function with LED indicator: Alarm Default setting: High: 28C / Low 18C. You can set the high/low alarm temperature by pressing the SET button, if the temperature reaches the warning value you set, the alarm thermometer will warn you. Wide and accurate range: thermometer working range: -10~50 (14~122F); sensor probe measuring range: -40~70 (-40~158F). High precision (1C/2F) to ensure food is stored at a safe temperature or to detect the function of the refrigerator. Input/Output (Probe) Temperature Switch Function: To use this function, you need to select the function by pressing the OUT/IN button under the stand. Can be used as refrigerator thermometer or freezer thermometer. Flexible installation: 2 different installation methods for refrigerator thermometer or room thermometer. Use the stand to place it on the table top, or mount it outside the refrigerator with magnets on the back. The cute design won't take up more space in your refrigerator.