Originally Posted by SlanginDueces
.....I calibrated with an ice bath but it seems like no matter what I do they won't get the same reading when I put them in my kegerator. They usually differ by at least three degrees. They both seem to fluctuate more then they should.....
How are you placing the probes in your kegerator? Attached to, or in, a liquid mass? Or just hanging in air? It can make a quite a difference. The first being the better of the two options.
Is this a keezer? Keezers will generally have relatively hot and cold spots within the air volume, especially while the the compressor is running, unless very good air circulation exists.