FYI - Here is how my temps looked at 30 minutes into the cook. The top
number was the grate temp, and the bottom was the dome temp. My UDS
has a Weber dome lid, and I was cooking on the top grate, as you can
see in the previous pictures.
As an aside, I installed a Tel-Tru UT300
(6" stem) in each of my UDS's
when I first built them and they are still almost dead accurate nearly four
years later. There was only 5* difference between it and the ThermoWorks