Hi there and welcome!
Yeah like Braz says don't ever trust ANY of the MES (
Masterbuilt Electric Smoker) thermometers. They are always wrong.
I'm glad to see you already have a 4 probe digital thermometer. That is like the 1st recommendation to be made when using an MES hahaha.
The next one is to look into the
A-Maze-N Pellet Smoker (
AMNPS) tray.
It will burn wood pellets and wood dust to produce PERFECT smoke for up to 12 hours UNATTENDED!!!! You can put it in the bottom left side of your smoker and cover with a slanted foil pan cut in half or you can build a mailbox modification and put it in there and have the smoke run into the smoker.
AMNPS Tray
My mailbox mod with
AMNPS:
FYI, your smoker may or may not be able to hit the max 275F smoker temp. You won't know until you try.
Also know that the temps swing so understand that if you set the temp to 250F then it will go over 250 and then drop under 250 and go back and forth to give you an average of 250F.
All of us MES guys run the smoker with the vent wide open all the time
Also we just foil over the water pan (also foil over the drip tray on the floor of the smoker for easy cleaning) and never fill with water. The MES holds existing moisture very easily without need of water. Finally I just removed my water pan and threw it out a long time ago to avoid having another thing to clean, I think many do that as well :)
Figured I would get this info into your head so you know what to expect.
I hope this info helps!