I'm not sure if the model you have has a long cord with the probe on the end, but what I did is this:
I have 4 digital thermometers, 1 wireless thermometer, and 2 digital hygrometers. One thermometer is on the substrate with the thermostat probe (thermostat regulates a CHE) so I keep it from getting too hot, the 2nd is in the hot hide, the 3rd thermometer is situated half way between his heat sources and about 6 inches above the substrate to monitor ambient temp, the 4th is in his cool hide. The wireless is also half way between the heat sources, but at substrate level to monitor ambient too. Then one hygrometer on either side of the tank.
The probes are in the tank with the wires either suction cupped in place, or under the substrate with the probes sticking out. The digital part is outside the tank, taped to the wall and labeled as to which is sensing what...
This is probably overkill (most definitely overkill), but I like to know what his entire gradient is. Also, he is in a 40 gal tank, so I have a lot of space to monitor![]()