I'm going to measure it in a few with the RBI 201. That's what I'm using to measure the substrate. The reading you see there is with the lid on. The tub is see through so you can read it from the outside.
I'm going to get an Acurite on Sunday so I'll be able to put the probe between the substrate and the tub. I measured the UTH and it's reading 90F - 93F when the AC shuts off.
Thanks. I'm debating on whether I should stay with the Repti Bark or go with newspaper or Cypress. Maybe Cypress on top of the newspaper or so on.