An oven thermometer is a device that measures the temperature inside an oven. It is useful for checking the accuracy of the oven's thermostat, ensuring even heating, and preventing overcooking or undercooking of food. 

Waterproof digital thermometers are useful for various applications, such as cooking, brewing, gardening, aquariums, pools, spas, etc.

There are different types of meat thermometers, some are designed to be inserted into the thickest part of the meat before cooking, while others can be used to check the temperature during or after cooking. A meat thermometer can prevent overcooking, undercooking, and foodborne illnesses caused by bacteria such as Salmonella and E. coli.

A digital fridge freezer thermometer can be useful for monitoring the performance and efficiency of a fridge or freezer, as well as for complying with food safety regulations and standards.