This LCD digital thermometer works at temperature: 0-50, temperature measurement range: -50-110, it is very suitable for refrigerators, coolers and freezers. This digital thermometer with the probe is small in size, only 4.8x2.8x1.5cm/1.89x1.10x0.59inch, easy to use and carry. This thermometer is easy to use , immerse the probe in a fish tank with a waterproof sensor to measure water temperature (submersible probe, do not immerse the thermometer in water). This mini thermometer has a display digital LCD with large number symbols for easy reading. This digital thermometer is also suitable for measuring the temperature inside and outside the car, air-conditioned room, refrigerator, aquarium, fish pond or bath water temperature.