I am looking for an external chamber therm for my ECB and eventually for a UDS that I will be building. I see a lot of stuff on here for meat therms but not much in the way of external units. I do have a ET-73 but also want to mount a couple. Anybody have a good link or manufacturer they recommend? I would want one with a 3 or 4 inch stem to get in there a ways to get a more accurate reading in the chamber. Thanks for looking!