Quote Originally Posted by Jessica Loesch View Post
Why 2? It has a probe. At least the ones at home depot do, for $10. Unit on the cool side probe on the hot side.

Also, someone suggested flexwatt heat tape at 11" size. Not a good idea, it will be fine with the 3" size.
Yea, I had one of the older ones from Walmart that only had one readout. I just recently got the newer type that has the ability to read both at the same time.