Get Accurate Results: How to Use Exergen Temporal Artery Thermometer

Getting an accurate reading on temperature is essential to monitor and treat various health issues. The Exergen Temporal Artery Thermometer has gained popularity due to its non-invasive and easy-to-use design. In this article, we will guide you on how to use the Exergen Temporal Artery Thermometer to get accurate and reliable results.

The Theory Behind Exergen Temporal Artery Thermometer

The Exergen Temporal Artery Thermometer is designed to measure a person’s temperature by using the arterial heat balance method. This method assesses the temperature by calculating the balance of heat lost through the skin and the bloodstream’s temperature. The temporal artery, which is present in the forehead, is used to measure the temperature as it is closer to the carotid artery -the artery which supplies blood to the brain, ensuring an accurate reading of internal body temperature. This non-invasive procedure is harmless, quick, and easy and provides an accurate assessment of temperature.

Preparing the Exergen Temporal Artery Thermometer

Before using the thermometer, it is imperative to ensure that it is clean and functional. Follow these steps to prepare the thermometer:

  • Wipe the device’s probe using a soft cloth or cotton ball soaked in rubbing alcohol or water
  • Ensure that the probe lens is clean and devoid of any dirt, oil or make-up residue.
  • Switch on the thermometer and wait for it to finish self-test (When the device is turned on, it will run a self-test and display a green light indicating that it is ready to use.)

How to Take the Temperature Reading

To take the temperature reading, follow the steps below:

  1. Hold the device in your hand and place the scan button on the front of the thermometer under your thumb.
  2. Position the thermometer at the center of your forehead, along the hairline.
  3. Slowly scan across the forehead while holding down the scan button along the hairline, stopping mid-way between the eyebrow and hairline for best results.
  4. Press the scan button and release it when you reach the hairline.
  5. You will hear a beep that indicates that the device has taken the reading. Check the temperature on the thermometer display.

Interpreting the Temperature Readings

The Exergen Temporal Artery Thermometer provides temperature reading in degrees Fahrenheit or Celsius. The device’s display shows the temperatures with a light-green backlight to make it easy to read:

  • Normal temperature: The normal temperature reading ranges between 97.6°F (36.4°C) and 99.6°F (37.6°C).
  • Fever temperature: A fever is present if a temperature reading is above 100.4°F (38°C).
  • Low-temperature reading: Low-temperature reading is between 95°F and 96°F (35°C and 35.6°C), indicating hypothermia or a low-grade infection

Additional Tips to Use the Exergen Temporal Artery Thermometer

Following these additional tips can ensure you get even more accurate temperature readings:

  • Let the thermometer sit in the room for at least 30 minutes before using it in a new environment. (This allows the thermometer to adjust to the new temperature level of the environment)
  • Keep the baby still during the scan. (For infants, who are more likely to move during the scanning process, it may take a few tries to get an accurate reading. Ensure that the baby is still before attempting the scan.)
  • Avoid using the thermometer in direct sunlight, as that may affect the reading accuracy.

Cleaning and Storing the Exergen Temporal Artery Thermometer

Regular cleaning and maintenance are necessary to keep the thermometer in good working condition. Here are the steps you should follow to ensure proper cleaning and storage:

  • Turn off the thermometer and clean the device’s probe with a soft cloth or cotton ball soaked in water or alcohol.
  • Avoid using abrasive materials or sprays to clean the device as it may damage the thermometer.
  • Replace the thermometer’s battery at least once a year to ensure that it functions correctly.
  • Store the thermometer in a cool, dry place, away from heat, moisture or humidity.


The Exergen Temporal Artery Thermometer is designed to provide an accurate reading of an individual’s temperature quickly and easily without causing any discomfort or harm. By understanding how to use the thermometer through the steps outlined above, you can get accurate and reliable temperature readings using a non-invasive method.

Frequently Asked Questions

1. How long should I wait to retake the temperature on the Exergen Temporal Artery Thermometer?

You can take the temperature again immediately if the reading was not accurate or you need to monitor the temperature for specific reasons. However, wait for at least 15 minutes before retaking the temperature when trying to determine fever presence.

2. Can the Exergen Temporal Artery Thermometer be used to take temperature readings without contact?

No. The Exergen Temporal Artery Thermometer must be in contact with the forehead to take readings.

3. Can the Exergen temporal artery thermometer be used on newborns?

Yes. The Exergen temporal artery thermometer can be used on babies of all age groups and adults.

4. What is the difference between a temporal artery thermometer and the ear thermometer?

The temporal artery thermometer works by taking the temperature of the temporal artery on the forehead, while the ear thermometer works by measuring the temperature of the eardrum. The temporal artery thermometer is non-invasive, while the ear thermometer can cause discomfort if not inserted properly to obtain a reading.

5. How do I know if the thermometer is not working correctly?

If the thermometer displays an error message, does not show any temperature reading, or provides a reading that seems incorrect, it could be an indication of a faulty thermometer. Replace the batteries and try the device again. If the issue persists, consider contacting the manufacturer or seek a replacement.

6. What batteries are used in the Exergen Temporal Artery Thermometer?

The Exergen Temporal Artery Thermometer uses a 9-volt lithium battery. Ensure that the battery is in good condition and replace it at least once a year to ensure the thermometer’s proper functioning.

7. Can the Exergen Temporal Artery Thermometer be used to measure ambient temperature?

No. Do not use the Exergen Temporal Artery Thermometer to measure the room or surrounding temperatures.

8. How long is the Exergen Temporal Artery Thermometer’s warranty?

The Exergen Temporal Artery Thermometer typically comes with a one-year warranty from the time of purchase. Contact the manufacturer for warranty and repair details.


  1. Exergen Corporation. (n.d.). Exergen Temporal Artery Thermometer. Retrieved 23 July 2021, from
  2. Michigan Medicine. (2018, January 22). How to Take a Temperature. Retrieved 23 July 2021, from
  3. Temporal Artery Thermometer – an overview | ScienceDirect Topics. (n.d.). ScienceDirect. Retrieved 23 July 2021, from

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