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Thermometers

Ear thermometer and electronic thermometer

These are examples of commonly used thermometers.

  • Ear thermometers use infrared energy to measure body temperature. The small cone-shaped end of the thermometer is placed in the ear, and body temperature shows on the digital display. The results appear within seconds. Some models also show the corresponding oral and rectal temperature readings.
  • Electronic thermometers have a temperature probe at one end and a digital display window at the other end. They work by measuring how well electricity travels through a wire in the probe. Heating or cooling of the probe changes the flow of electricity. This change is converted into a temperature value that shows in the display window. Electronic thermometers can be used in the mouth, armpit, or rectum.

Current as of: October 24, 2023

Author: Ignite Healthwise, LLC Staff

Clinical Review Board
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This information does not replace the advice of a doctor. Ignite Healthwise, LLC, disclaims any warranty or liability for your use of this information. Your use of this information means that you agree to the Terms of Use. Learn how we develop our content.

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