this is what I use: Advanced Degrees at Bon Appétit Tools of the Trade at Epicurious.com
the Tech Fork right at the top.
I`ve also checked it`s calibration against Lab quality thermometers and it`s pretty accurate! and surprisingly they`re accurate at standarnd room temps also, which is rare as themocouple devices usualy have a range of accuracy and out of this range they tend to drop off exponetialy. so don`t waste money on a probe that will do a Wide range from Freezer temp to molten steel! you`de be better of taking a wild guess youself or pulling number out a hat!
it`s important to remember though, that you`re putting cold metal into something hot, this will lower the temp around the sensors a little, so forget the "Instant" side of the claims, leave the probe in for several seconds before accepting any reading.