I am going to use digital thermometers with probes for my hatch. One of them also has a hygrometer. Should I make 3 holes in the styrofoam the size of the probe to stick them in? (I can seal it around the edges) Its a hovabator with forced air and a turner. The instructions say if your using existing holes to make sure that it is an air exit hole, not one that draws air cause that could give incorrect readings? I understand that the probes should hang at about the height of the top of the eggs. How would you experts do it?? (This smiley has been me for weeks) Want to do it right. Dan Oh- I also have a un-heated bedroom that has been steady at about 60 degrees with the door shut. would that be a good place to keep the bator?