Another handy deal with the digital thermometers (at least the ones with an in/out temp probe) is that you can use the probe to get accurate readings within the warm hide. Depending on what your hide is made of and the type and positioning of light, radiant heat energy can raise the temp in there more than you might expect. If it is too hight you should not have much of a problem drilling a couple holes through the top to allow a little venting.