In addition, to develop a portable infrared device for human temperature screening, a set of temperature compensation method on thermopiles was designed.

But where it gets really interesting is in its sensors. The Quince has an infrared sensor as well as a carbon-dioxide sensor, which it USES to detect human breath and body warmth.

In one of the examples provided in, an earbud could include infrared photodetectors that would measure the user's body temperature, heat flux and heart rate.