This handy measurement device is a professional tool for anyone who has the highest priority to correct temperature in fridges and freezers, aquariums or similar areas. The digital professional thermometer works with high-quality sensors, in order to display the temperature with high accuracy in a measuring range from -40°C to 70°C and to generate an alarm within seconds. This happens when the set alarm limits are exceeded or fallen short of. Then this professional thermometer in a protected TFA design gives an audible and visual signal whose volume can be set or muted in two steps.The operation is intuitive and simple: The clear display constantly shows the current temperature as well as the highest and lowest values, which can be reset by pressing a button. Thanks to the approx. two meter long watertight cable sensor, a flexible placement of the temperature sensor is possible even in wet environments or in water. The display can be magnetically attached to the outside of the freezer