Originally Posted by NoClueBrewMaster
I have seen a few different options for a thru-wall cooler temp. probe.
What seems to be the best?
I ordered the one from Norther Brewer, it works very well, I have the 10 gallon rubbermaid cooler mash tun, and I got a digital thermometer from wal-mart, checked the calibration at work, it was only .2 degrees off, good luck.