Ok Now I Encountered a Program , i did as said here i putted the probe under the tank over the UTH (i have enough space for both the UTH and the probe to fit so no need to tape) and now the thermostat is turning off quickly so i think its working as it should. i changed my substrate to wood chips and the tempreture with the tempgun over the wood chips is reading about 79 - 81F isnt this too low for a ball python? i putted a very thin layer of wood chips. please somebody can tell me whats happening?!