Humidity

[Debris]

How can I check the humidity in my tank?

This is what you need. It will tell you your ambient, hot spot (using the attached probe), AND your humidity. They are great. It seems that most people that don't have gigantic collections like these...I know I do.

You can get it at Wal Mart, near your outdoors stuff or hardware section.
$12

http://lib.store.yahoo.net/lib/partshelf/ps-00891.jpg