Regarding the request for UV meters.  It is important to look for a meter that 
gives the results in micro watts per lumen.  This is how we measure UV in 
museums.  There are a number of UV meters out there that will measure UV but 
not give you the answer in this form.  In order to get the results in 
microwatts/lumen you need to combine the results with a visible light meter - 
too much math for me & likely most folks :).  Elsec makes a very nice meter 
which measures UV, visible light, RH & temperature.

Susan Maltby, Conservator
Maltby & Associates Inc.
Adjunct Professor, Museum Studies Programme
University of Toronto

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