The gauge you are talking about is what I have. I guess I should read directions on how to get two readings on it. It shows only one temp plus the time plus humidity. I have the probe on the wall just above the heating pad and it is reading between 80-85 and that is on medium heat. Will raise it to the third light and monitor heat every 15 minutes to see what it reads. Since the one that I purchased seems to only show one temp, will get another digital for the cool side to check that. Will get large tank correct prior to dividing it in half.

I am thinking of closing off bottom half of screen to see if I can raise humidity. Is not at 50 % even with misting. Although I had a BP many years ago for almost three years with nothing but a aquarium light and top on it and a glass bottom. Snake ate great, shed well and never had a problem.
I am not a breeder nor do I want to be. I am a photographer and have the snakes as props. All my models seem to want to shoot with snakes.

But since I have them I want to make sure they are healthy and happy.