Yes, an Inkbird is a digital thermostat, I have a probe linked to it that's connected to the underside of the glass where the UTH is so that the pad turns off when the heat exceeds 90F.
Right now, I have all the heat (the UTH and an overhead IR bulb) on the warm side so the heat on the cool side is entirely from crossover heat (i.e. as my BP gets further towards the cool side, he's further away from heat sources and the temperature falls). The IR bulb is a 75W which I'm planning to step down to a 60W since the warm side does seem pretty uniformly in the high 80s or low 90s. The bulb is the only thing not on a thermostat/rheostat.
With the adjustments I've made today (insulating the top), the air temperature on the warm side is now 92, too hot, but the air temperature on the cool side is more acceptable at 79. Ground temperature on the warm side is steadily 87-91 measured by IR gun, including inside his hide where it's 88. Ground temperatures on the cool side get as low as 70F, but that might rise since the air temperature there is now 78. With the new UTH pad I have coming, it will extend just a bit further across the floor of the tank.
Do you find it's a better set up to have two different UTH each linked to their own thermostat so one can heat the "cool" end and one heats the "warm"? I hadn't seen that in my research, most folks seemed to recommend heating one side and letting distance define the cooling side.
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