Digital thermometers are devices used to measure temperature quickly and accurately. They typically use electronic sensors to provide a digital reading, making it easy to see the temperature at a glance. These thermometers can be used for various purposes, including checking body temperature, cooking, and monitoring environmental conditions. There are different types of digital thermometers, such as oral, rectal, and axillary models for measuring body temperature. Some also come with features like memory recall to store previous readings and backlit displays for easy visibility in low light. Digital thermometers are generally more reliable and faster than traditional mercury thermometers.