I just got my temp gun, so I've suddenly become obsessed with the temperatures in my tank to make sure they're perfect for when my little guy comes. The problem is my Digi Thermometer and my temp gun are giving me totally different results. For example, on my cool side, the thermometer currently reads 79. But my temp gun shows anywhere from 86-90 degrees on the cool side, depending on where I point it. How can there be that much of a difference? From 79-90? Do you think there is something wrong with my thermometer or temp gun? By the way, I've got a human heating pad with newspaper for substrate right now. I felt the surface, and it definetely does not feel like 90 degrees.