Dome vs Grate Temperature

[Mark Wein]

I need to revive this ahead
I am doing my first pork butt on a new Weber Summit Charcoal Grill
The dome thermometer is in the smoking zone - about 225* but the Maverick (in the front of the grate) is telling me it is about 250-260*
I moved from a 22 1/2 Weber kettle and I used to have the Maverick set so I could snooze and get the alarm if the temp went up
I don't know what is right
Advice?

 

[Matt H.]

I use the grate temp simply because I can monitor it from the comfort of my home.

 

[Enrico Brandizzi]

Why are you surprised???