The UTH isn't thermo-regulated. It's the kind you just stick to the bottom. I was thinking about getting a bigger one to cover half her enclosure so the warm side would actually be a whole side that's warm.
She loves it, & in turn, I love it. I've been moving things around in her terrarium to see where I want everything & where she likes everything to be. She loves her tree the most. Stays in that thing 90% of the time. But when she's out of it, she really likes to climb. So, boom. Suction cup plastic tree limbs. & of course I want her to feel safe & secure, so 3 sides of her terrarium are covered with static forest wall paper. On the warm side she's got a log hide with moss completely covering one side & half covering the other. Ultimate secrecy.
Currently, though, she's double-wrapped around her digital thermo/hydrometer. I think she wants some play time!♥