So, we all use little hygrometers in our 'dors. They are run with a little electrical cell that varies according to the RH. But, in a lab, you use a more fundamental measurement instrument called a wet bulb/dry bulb hygrometer. Basically, one of the thermometers is kept in a wet sleeve. This is cooled by the evaporation. This difference between the two can be converted to RH.

This is the one we built for the lab where I work. And, no salt test is needed!

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I can't fit that in my humi, Bob, but COOL
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I'll buy one, Bob. :-)
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Does it come in a mini? Very cool Bob.


Knip.
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Thanks. One of our techs was wheeling it around and I realized I had to post it.
Bob
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Very cool. They make smaller ones. The military uses them to determine humidity and in addition to the temperature we determine the heat category. Heat Category determines work/rest cycle and changes in uniform/hydrations cycles.
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Come on guys, I've seen some of your beautiful humidors the size of a Buick. Should be no problem using this hygrometer.:-)

Larry
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I'm sure a decent size coolidor would fit that beast no problem. I'd imagine my 120 quart would fit it just fine. Standing up probably.
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