Quote Originally Posted by Wrongside View Post
The UTH is already on a Repti-Temp Rheostat and turned all the way down as far as possible
barrow some ones Thermal IR Temperature gun and take a 100% accurate surface temperature reading. also the heat lamp could account for that extra substrate temperature if the Heat pad is already on the lowest rheostat setting. i dont even deal with probes i take my UTH temp with the IR Thermal gun, i just move the substrate take the temp and done. the temperature of the heat pad directly (news paper is over the glass) will be what the substrate temperature is unless u have a few inches in there. mine is only an inch thick.