A contactless thermometer is a device used to measure body temperature without direct contact with the skin. It typically uses infrared technology to detect the heat emitted by the body, providing a quick and accurate reading. This type of thermometer is especially useful in settings like hospitals and schools, where minimizing the spread of germs is important. These thermometers are easy to use; simply point the device at the forehead or another area and press a button to get a reading. Many models also have features like fever alerts and memory functions to store previous measurements, making them convenient for monitoring health over time.