What device is used for measuring temperature at the opening of the ear?

The tympanic thermometer is specifically designed to measure temperature from the ear canal. It works by detecting the infrared radiation emitted by the tympanic membrane (eardrum), which is closely aligned with the body's core temperature. This type of thermometer offers a quick and non-invasive way to obtain a temperature reading, making it particularly useful in clinical settings as well as at home, especially for children.

When measuring temperature via the ear, the tympanic thermometer provides an accurate reading that reflects the body’s internal temperature. Other types of thermometers, such as oral, rectal, and forehead thermometers, are designed for measuring temperature at different body sites and may not provide the same precision when used in the ear. Using the wrong device for this specific measurement location can result in inaccurate readings, demonstrating why the tympanic thermometer is the appropriate choice.