http://www.digitalcookingthermometer.us We chose to test the waterproof ability on Robelle's digital food thermometer, or meat thermometer. I have actually made use of a few of these in the past and one of the problems that wound up breaking my thermometer was when it down into the pot I was using and water got in making it freak out.
This meat thermometer has an o-ring design that the others like it out there don't have. They could look the same, but they aren't. Although, I wouldn't deliberately immerse the head of the thermometer with the digital display, and definitely not put it in the dishwasher, it did pass our test. I suggest you try this thermometer.
