I'm a new owner but definitely get a thermostat for that uth. I didn't think I needed one because the uth I bought came from what I thought was a reputable reptile supply company. But everybody told me that yes I needed one along with a temp gun to check temps. When I got the gun and checked the temp on the uth it was 117 degrees!!! I had repticarpet between the glass and substrate so the temp on top of substrate was just over 100 but still WAY too hot.
