Jeff Liebermann wrote:

Besides hygrometer, a humidity meter is also
called a psychometer, psychrometer, or
various trade names (i.e. Psychron).
Here's my Bendix Psychrometer Model 566-3:
http://www.LearnbyDestroying.com/jeffl/pics/weather%20stations/Bendix%20Psychron%20566/index.html
It's a nifty little instrument and state of
the art for the 1960's.

1960s? Sounds like an 1880s Jule Verne novel...

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underground experts united
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