Great info on humidity meters. 
 
How about the latest in light meters?  Checking the onset site I found that they had"Light Intensity Data Loggers". 
 
What's the experience with these?  Are they designed to be left in one place to collect data over time or can you take several readings?  It looks like they need to be connected to your computer to get a reading.
 
Any other suggestions for light meters that would give "on-site" readings? 
 
Thanks for the input!
 
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