Digital Forehead Thermometer Giving Different Temperature Readings

The temporal thermometer is considered to be the most accurate method of measuring body temperature, proving to be more accurate than infrared scanning thermometers. But like any instrument, there are certain circumstances that can cause different temperature readings in forehead thermometers.

Why is Temple Temperature Higher Than Forehead?

Typically, the temperature at the temple is slightly higher than the forehead due to the temporal artery's proximity to the skin's surface. The forehead's skin is thinner and has more air exposure, which can sometimes result in slightly cooler readings.

When taking a reading, ensure that the thermometer is correctly positioned and that the temple area is exposed and not covered by hair or a hat, as these can insulate the area and affect the temperature measurement.

Instances of Different Temperatures

When using a temporal artery thermometer, you should normally be getting reproducible results. These results should be within a few tenths of a degree of each other. However, there are a few instances that can cause inaccuracies.

Here’s what to know about using the temporal artery temperature method:

• Multiple temperatures taken over the same area in rapid succession will ultimately cool the area, causing differences in temperature readings.
• Any head covering, hair, hat, etc., will prevent the heat from dissipating and would cause the reading to be inaccurately high. This also applies if one side of the head is into a pillow.
• If the person is sweating, the temperature on the neck behind the ear lobe becomes the overriding temperature. Since this area is not quite as stable as the temporal artery, it can easily be cooled by the thermometer in taking multiple readings. It's important to keep in mind that the probe of the thermometer will be at room temperature, which is about 30 degrees Fahrenheit (17 degrees Celsius) cooler than body temperature.

Temporal artery temperature is the most accurate method of temperature assessment in the world. To ensure accuracy with temporal thermometers, be sure to scan the side of the head that is most exposed when taking your temperature measure. This will likely address your issues of getting different temperature readings.

Master Your Technique: Watch Our Thermometer Tutorial

If you're unsure about the correct way to take a temperature reading, or if the variety of readings is confusing, we've made it simpler for you. Watch our quick tutorial to master accurate temperature readings with your Exergen thermometer! This step-by-step guide will ensure that you're using your thermometer correctly for the most reliable results.

Need Personalized Support?

Despite following the above guidelines, if your readings are still inconsistent, there might be unique factors at play. Still have questions? Reach out to our support team for personalized assistance. Our experts are ready to help you with any inquiries or troubleshooting you may need to ensure accurate temperature measurements every time.

In Closing: Different Temperature Readings 

If you’re getting different readings with your Exergen thermometer, make sure one of the instances mentioned above is not occurring first.
You can read our troubleshooting user guide for more information on potential issues or Exergen Thermometer. You can also read more about how temporal thermometers work, including the technology behind Exergen instruments.