I've got the ET-73 and have been happy w/ it. The only negative is that it has a radius of 100 ft and I have a hard time getting the updates through walls. I leave it out on the kitchen counter now, set the high and low temps for the smoker, set the high temps for the meat and leave it alone. If I hear it beep, I know it's one of the 3 alarms set, so I gotta get up anyway. Plus, I'll give it a check should I have to get up for a beer or am going into the kitchen.