pianotech-digest V2002 #601

[ReggaePass@AOL.COM]

In a message dated 4/17/02 2:13:44 PM, owner-pianotech-digest@ptg.org writes:

<< - ----- Original Message -----
From: "Ron Nossaman"

> I do carry a little Whatman hygrometer for logging temperature
> and RH% with tunings, and I've always wanted a simple way to check it's
> accuracy from time to time.

I use the wet/dry bulb device, not having found an electronic I wanted to
trust.  How accurate does this Whatman seem to be?  Can you suggest a
source?

thanks,

sb >>

Have you tried the Pacer hygrometer Model DH100 from Pacer Industries in 
Wisconsin (715) 723-1141??  Contact they for an explanation of how their unit 
is calibrated and why they claim it is more accurate than a sling 
psychrometer.

Happy measuring!

Alan Eder