So I recently decided to go with a tub for my ball pythons.
First, here is an image so I can get opinions on whether or not there's anything wrong with it.


The tub is a 21 qt. under bed sterilite.
I switched from bedding to paper towels for the obvious reasons and to bring down the constant 80-90% humidity in the tub.
Before, Sebastion was in something larger and he's been fine, so I personally believe the size is not an issue.
I have a UTH on one side, and was wondering with the digital thermometer I have, is it accurate? How should I set it up?
Currently I have the digital reading on the outside, with the wire and the (reader)? on the inside above where the UTH would be, and underneath the paper towels. But if its literally above where the UTH is, how is it accurately reading the entire environment instead of just the UTH it's on top of? So is it just the spot it's on being read? or the whole environment?