Ear thermometers take a person's temperature using an infrared sensor. Learn more about their accuracy, how to use them, and alternative methods here.

What it measures: These use infrared sensors that measure light in the air, because this is inversely proportional to the amount of CO2. As such, these sensors can give a fairly accurate ...

Researchers have finally figured out how mosquitoes see humans in the dark: They detect infrared light the body generates via heat.

The Switch 2 has been officially revealed, and while it's unconfirmed that the new Joy-Con controllers use IR sensors, we're running you through what they do.

Forehead thermometers use infrared sensors to pick up on infrared radiation that the body produces. Although infrared radiation is not visible, a person may be able to feel it as heat.

IR sensors are also used in factories to monitor the temperature of equipment without having to stop it. But there are some issues with using this technology to screen people for illness.

How Infrared Images Could Be Part of Your Daily Life In a post-quarantine world, heat sensors could help spot sick people with elevated temperatures as they enter public places.

TV remotes still use infrared because it’s cheap, universal, and reliable. Remotes often use IR for basic functions and ...