I'm getting an Ultratherm Heat Pad from Reptile Basics, I know they also carry a variety of thermostats. I've been reading about the necessity of having a thermostat to control the temperature, but I'm a little confused about how to attach the thermostat to the UTH. I understand that you can tape the thermostat probe to the heat pad with electrical tape, but what exactly does that do? Can anyone clarify? Is there some other connection that must be made between the thermostat and the UTH?