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Furaffinitydotnet -4 points ago +1 / -5

Then what do they use?

IR thermometers do use IR radiation which is why they're pointed close to the forehead and not in the eyes.

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deleted 1 point ago +1 / -0
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deleted 0 points ago +1 / -1
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Furaffinitydotnet 0 points ago +1 / -1

Why don't you go stare into one if you're such a genius?

You don't know shit about how the tech works.

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deleted 0 points ago +1 / -1
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Furaffinitydotnet 0 points ago +1 / -1

Go stare at a UV lamp while you're at it.