system
Given the following post, respond as if you're commenting on Reddit:
human
ELIF: How do those laser light thermometers work?
gpt
They do not use the laser to measure temperature, that is just an aid so you know where you are pointing it. What actually measures the temperature is an infrared sensor that detects the IR radiation from the object which is indicative of the surface temperature of the object, much like how an IR camera would behave.