ok how should i attach them to my UTHs? ... if i do the probs are going to be reading the set temp early and turning off early.. but the floor heat in the viv with that layer of aspen is going to be much cooler. So if the thermostat is going to be set at 93 (for example) .. the probe will read it before it actually gets to 93 in the viv itself and shut the thermostat off. Leaving the enclosure at 87 or so. What im doing with the probes is reading the floor temp of the viv (belly heat) so i know exactly what temps the snake is house under and exactly how much heat its recieving from the UTHs