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I've tried the radio shack sensor and it doesn't work, it's very inaccurate (but it might tell you if the gauge is bad). I know enough about electronics to be dangerous, and here's the problem. All thermistors have a base reading (usually given at 72F) and a curve of resistance vs temperature or a formula, which is usually non-linear. There is no "standard" for this. I bought several thermistors from Mouser and I found two in parallel that are close from 60-100F. But still, I haven't found one that is really "right". If I get some spare dough I may buy the real thing, get set of measurements on it (not easy, but I can borrow a good temperature gauge), and then I can select the "correct" thermistor for others.
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