Double Ranco From Reptile basics.
The probe it outside the tank inbetween the UTH and the cage.
The UTH it atop a sheet of 6mm polyurethane insulation
The substrate is considerably less than half an inch.it I put my finger in it it doesn't even go to half the first digit.
I am shooting for 82-84 on the side in question for ambience. Sadly as I couldn't find a dimmer today I'll have to go searching again tomorrow to find one for the basking side. I'm going to order a thermostat for that side, but I don't want her to have to wait three days because her owner is stupid.
The part under the substrate reads 85 to 86, but the thermostat reads 92 I don't get it.