The last time I checked my dome thermometer was 6 months ago and it was off reading 200 in Boiling water so for the heck of it I rechecked it again and it was off again reading 200 in a pot of boiling water. I cook raised in the dome often and don't believe I have ever touched any food with the probe, I am going to check it again before this weekend Super Bowl Cook. I always let my thermo pen decide when things are done. Just a reminder... good luck out there.
Dimondale, Michigan XL BGE