We use three different types of HOBO loggers (door, soil, temp/RH) and they all work very well.  They're easy to download, print immediate graphs or data lists (from a computer loaded with the appropriate software), and the data can be converted to an Excel format for other purposes.  We placed the loggers outside, inside, in cases, in fireplace flues, in attics, and just about anywhere you could want them.  And they don't need batteries that often.  If you go with the shuttle off-load method, I have easily downloaded between 8 and 12 loggers with a month's worth of data and transferred it our computer.  And they really do give you an easy-to-understand look at your environment.
 
Meredith Dunham
Curatorial Assistant
 
Virginia Beach Historic Houses
3131 Virginia Beach Blvd.
Virginia Beach, VA 23452
Phone: 757-431-4000
Fax: 757-431-3733
Email: [log in to unmask]

________________________________

From: Museum discussion list on behalf of Sue Frank
Sent: Wed 1/10/2007 2:14 PM
To: [log in to unmask]
Subject: [MUSEUM-L] HOBO Hygrothermographs



Can someone bring me up-to-speed about HOBO hygrothermographs?  We
don't use these at the Phillips Collection, but I know other museums use
them.  Are these more accurate than the paper recording units?  Is it correct
that you don't have to calibrate them monthly?  How often do you have to
calibrate them?  Thanks.

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