I've had my ET-73 since 11-09-08 and today while running the usd noticed what I thought was a low temp reading compared to the flush mounted therm. The outside therm usually runs 40 degree less than the middle of the grate. Well I checked it against another therm plus did a boil test and sure enough it was 10 degrees off. I called Maverick and they are sending me a new probe for the smoker. I'm pretty pleased with their CC.