I been looking into the UltraQ for my WSM. Let me know how you like it.
Already took it out for a boiled water test and had some issues. It wouldn't hit anywhere above 207, while my two thermapens hit 211/212.
Emailed BBQ Guru and they told me the probes need at least 10 mins to warm up (I shyt you not). Thought it was bullshyt but tried it anyway.
And it worked!
I did some more research, apparently the probes are laboratory grade, and unlike the probes you find in other thermometers, need time to warm up. Not great if you need an instant read, but more accurate when constantly checking surrounding temps and having to decide how to adjust the fan.
Learn something new everyday.
Just put some ribs on.
Set a temp of 250. It's been steady (variance of 8 degrees up or down) and I lit too many coals initially. I am impressed so far.
Probably the nicest feature is the Open lid feature, it detects when the lid is open and adjusts the fan so the coals don't overheat when the lids is closed.
Happy with it so far. Once you lock in the starter fuel (I used the minion method) you can set and forget.