Ensure your dishwasher is operating at the optimum temperature with the Comark waterproof thermometer. Multi-purpose, the thermometer can be used to check the temperature of both food and of your dishwasher. That way, you can be sure that your food is cooking, and your tableware cleaned at the correct heat - reducing the risk of food poisoning. It also has a max/min memory function and is supplied with a battery, probe cover and wall-mount bracket , making it perfect for use in any kitchen. The Comark dishwasher-safe thermometer ranges from -20 to +200°C (-4 to 392°F) for use with both hot and cold temperatures. Annual calibration is required, and it is suitable for food grades only.