Sorry if I didn’t explain it good. I have a heat pad that is under the tank the heat pad is plugged into the thermostat. The thermostat is set at 91 degrees. There is a probe attachted to the thermostat and the probe lays on top of the coconut shavings in the hide. When she goes in the hide she goes over the probe and heats it up, so it says that it 91 in the hide when she is in there. But I don’t think that’s the actual temp because when she leaves the hide it drops to 83 then heats back up to 91.