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.

IR blasters are hardware components and cannot be installed or downloaded. If your smartphone does not have an IR blaster, you need to use an external IR blaster device.

The passive infrared (PIR) sensor market is experiencing significant growth as demand for efficient motion detection and ...

A recent Windows update has changed how Windows Hello face unlock works, now requiring a color camera in addition to IR sensors to authenticate you. That means it no longer works in the dark.