How To Use Infrared Thermometer?

How To Use Infrared Thermometer?

Learn how to properly use an infrared thermometer for measuring body temperature and detecting potential trouble areas in mechanical equipment, circuit boards, and building systems.
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Infrared thermometers are not only excellent at detecting fever but they can also be used to detect other medical conditions. By taking the temperature of a sick person, doctors can accurately determine their cause and treatment options.

Medical infrared thermometers are noncontact, making them suitable for use in a range of settings. Medical professionals and public spaces often rely on them for quick and dependable readings.

Using the Thermometer

Thermometers are a quick and easy way to measure the temperature of objects. They use infrared radiation to detect a target’s surface heat, which is then converted into an electrical signal that may be displayed in units such as Celsius and Fahrenheit.

When using a contactless thermometer, you should keep a few things in mind to ensure accurate readings. First, make sure the device is clean of any dirt or dust that might affect its performance.

Infrared thermometers are useful for checking the temperatures of mechanical equipment, circuit boards, and building systems that could be affected by an elevated temperature. It’s a safe and effective way to identify potential trouble areas and help prevent costly repairs and failures.

Steps to Use Infrared Thermometers Safely and Properly

An infrared thermometer is a useful tool for diagnosing automotive issues, measuring the temperature of a product, or even checking your body temperature. But it’s essential to use them correctly and safely in order to guarantee accuracy.

  • Selecting the Ideal Infrared Thermometer

When selecting an IR thermometer (backlight infrared thermometer or no backlight infrared thermometer), there are several important factors to take into account. First and foremost is selecting one with a distance-to-spot ratio that provides accurate readings at whatever distance you plan to use it. This number may differ between models but generally falls around 60:1 or higher for the top-of-the-line models.

Another crucial factor is the maximum distance an infrared thermometer can accurately measure. This information can usually be found either in the manufacturer’s instructions or on the product packaging.

  • Adjust temperature settings

When measuring the temperature of an object or surface, it’s essential to adjust your infrared thermometer settings accordingly. Doing this will guarantee accurate readings each and every time.

Some IR thermometers feature designated settings buttons that can be used to switch between Celsius and Fahrenheit units. Pressing either “C-SET” or “F-SET” will cause the degC on your screen to flash or change to a degF, signaling that you have successfully changed into your desired unit.

  • Select Body or Object

Begin by aiming the thermometer gun at an area on the surface that can be measured. If this is not possible, paint or coat with a non-reflective coating – for instance, two or three coats of matte black barbecue paint).

Infrared thermometers work by using a lens to focus the infrared rays emitted by an object onto a detector. The detector then converts this energy into electricity for temperature readings.

  • Press the trigger and measure

The closer an infrared thermometer is placed to its target, the more accurate its reading will be. Hold it approximately six inches away for optimal accuracy.

  • Avoid Touching the Surface You measure Directly with an Infrared Thermometer

While infrared thermometers are convenient and user-friendly, they cannot measure temperatures on surfaces hidden behind glass or other opaque materials like windows, walls, or doors.


Are you searching for a non-contact thermometer to check the body temperature or an easy-to-use portable infrared gun for a supermarket? There’s a model of Caretek’s infrared thermometer out there that can help maximize your efficiency. To learn how to how change an infrared thermometer from Celsius to Fahrenheit? Read here.


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