external temp probe(lazer)

[platcat]

Does anybee have knowledge of accuracy or inaccuracy of those point and shoot temp probes?? On glassware/rxn,s/? they are cheap and swip uses a variety at work to measure temps and operation of working catalysts scrubbing waste gass,s.Do they work thru the glass?On the job I am measuring the temp of the containment piping to deduce operation vs inoperation.Swip has not acquired one yet for hobby use.
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[raffike]

I have one of these multimeters with ext. temp probe and it's pretty accurate.Like when water boils it shows 99-100.
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[Fully_Auto]

The cheapest IR thermometer I've seen costs about $100.

[goiterjoe]

They'll take accurate readings within a couple degrees Kelvin of an oil bath from 3-4 meters away.  Taking a temperature reading on the outside of a glass is somewhat inaccurate at elevated temperatures, with the error being directly proportional to the temperature difference between the glass and the outside air.
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