If you don't have a digital thermometer probe sitting above the UTH hot spot, unplug it. Are you using a thermostat to control the output of the UTH? If not, unplug it.
It's hard to tell what kind of thermometers you are using. Are they digital or analog (those round stick on ones with the needle)? This matters a lot because digital thermometers are much more accurate.
It is very possible that your tank is hotter than what those thermometers are telling you.
Not trying to beat you up here, just trying to make sure your little snake is a-ok!![]()