HA! bcr229 good call.
I guess it might be worth mentioning as well that checking the temp on that side of the tank isn't all that useful. You want your probe, the part of the thermometer that takes the reading, where he animal is. That would be inside the hide in the substrate down where the UTH is producing heat, or since you are currently using a bulb on the top surface of the hide which can get significantly hotter than inside if you are heating from the top.