Not really sure, but I don't think it'll be necessary. I'll be making a 3 gallon batch (not beer) that will use a yeast with a rather limited recommended temperature range of 70-75°F. My experience with the Inkbirds is that they can do that reliably, but I'd like to be able to keep tabs on it without having to go down stairs to the brew room (I'm handicapped) just to check temp. I have a Tilt Mini Pro that works very well in a bucket but the small mouth of a glass carboy will pose a problem. I suppose that I could use a bucket for primary and rack to the 3 gallon when appropriate, but hey - another toy for the hobby won't break the bank -