Quote Originally Posted by LGray23 View Post
The thermostat probe should be directly on the UTH outside the tank, thermometer probe can be hot glued inside the tank on the floor directly over the hot spot.
Can I jump in here with the same question?

My Zoo Med ReptiTemp 500R Remote Sensor Thermostat just came.
Does the probe part go inside or outside the tank?

I'm horrified by the thought of cutting a hole in the brand new screen lid that goes over the Lexan cover!