LOL,
I've said it before and I'll say it again, I have NO hygrometers of any kind. I go with the "if it's shedding properly, it must be humid enough" rule. That said I do make adjustments to individual cages to help humidity, moss box here, move water bowl there.
All my babies are in smaller enclosures, shoebox racks to be exact. The smaller tubs hold the humidity better.
Like Jeff said, condensation is a great seat of the pants hygrometer, lotsa condensation to the point it's soaking the substrate is too much humidity IMO. No condensation at all is typically not enough.
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Thanks,
Dave Colling

www.rainbows-r-us-reptiles.com
0.1 Wife (WC and still very fiesty)
0.2 kids (CBB, a big part of our selective breeding program)
LOL, to many snakes to list, last count:
26.49 BRB
20.21 BCI
And those are only the breeders 
lots.lots.lots feeder mice and rats 

