2 UTHs?

[PitOnTheProwl]

Yes, I'm running 2 "JumpStart" thermostats - 1 for the UTH under the hide and the other for the CHE on the other side. Yes sir, they're mounted underneath the glass tank on the outside. Just to clarify, the probe should be under the hide, below the substrate, directly on the glass and reading around 90 degrees, correct? Or does it need to be above the substrate but up against the bottom of the hide? CHE is a 100w.

Probe shouldnt be inside the enclosure. It should be between the glass and mat. Fluids can cause the probe to give a false reading. Also a burrowing animal can move it.

How thick is your substrate above the mat? Should be less than a 1/2 inch.
What are you using to measure your surface and ambient temperatures?