Just a warning - I use this thermometer (7" stem version sold by SM)
on my grill with the RK drum to monitor temps. Well, I tend to leave
it outside on the grill when I am done, and that hasn't been a problem
until the temperature started to slide south of the minimum 50 degree
marking on the thermometer. After a few nights of that, the
thermometer popped - the dial is wild now, making the thing useless.
The moral is don't leave your only $20 plus shipping critical coffee
roasting tool outside in cold weather ;P I have 2 replacements on the
way, and both will live inside!