TEMPERATURE RANGE: The temperature range is from -20°C/-4°F to 110°C/230°F allowing you to use this in the fridge, freezer or as a general room thermometer.FROST ALARM: Temperature range: 39°F to 46.2°F, When it runs within this range, a snowflake icon will appear on the screen.If the temperature is lower than -4°F, it will display: "LL.L". If the temperature is higher than 230°F, it will display: "HH.H"°C/°F CONVERSION: Just press the on/off button to switch the thermometer on and then select Degrees or Fahrenheit.This is the simplest deep monitoring electronic thermometer on the market with only two buttons.MULTIPLE WAYS TO USE: The back of the refrigerator thermometer is equipped with magnets, hooks and suction cups to meet different environmental needs.Either stick it to the refrigerator door with the rear magnet, or use the stand to place it on the table-top , and finally you can flip the stand over and use the hook to hang it on a refrigerator shelf.LARGE SCREEN, SMALL SIZE: LCD display, big digits. You can visually observe the temperature, and also won't take up too much space