Taylor 9842 Commercial Waterproof Digital Thermometer
I've dropped it into the mash, while chilling wort and its stood the test of time.
I have a dial thermometer as a back up but havent needed it yet (knocking on wood)
All for around $15.00
I knew it.
Reads about 6 degrees off now.
Its almost two years old, maybe I should change the battery. Cant calibrate it though...............
MEH, I'll send it back and use the lifetime warranty.
Glad I had the dial as a back up.