Hi Tracy,
We just did exactly that. We replaced our old and in-need-of-calibration hygros with digital versions(HOBO U10s). They work very well, the software is easy to use, and they do not need calibration. I do keep my old hygros out for display purposes, but I do not worry about keeping the graphs, if I even have them turned on. Lots of visitors see them and wonder about them, giving us a good opportunity to explain that element of environmental control. The new digital versions are largely invisible(dependent upon placement). Most people think they are thermostats.
Good luck.
Mark Janzen
Registrar/Collections Manager
Edwin A. Ulrich Museum of Art
Martin H. Bush Outdoor Sculpture Collection
Wichita State University
(316)978-5850
I don't know if this question has been posed before and I am sorry if this is a repeat. I was wondering if anyone uses digital data loggers as opposed to pen/drum hygrothermographs. My museum is looking into possible changing out the old hygrothermographs for something a little easier to manage and calibrate but can also keep day to day records. Does anyone have any opinions and/or suggestions?
Tracy