please tell me if i am right
Again, for room temp, my experience suggests that using thehttp://en.m.wikipedia.org/wiki/Steinhart%E2%80%93Hart_equationTracks to within 0.5F at room temp based on 4 separate didital thermometers. Not bad.
I used a thermistor a while ago and I could get temp readings within 0.1C; but that was based on the manufacturer's provided coefficients and equation.
As always, if one goes through surplus junk to salvage parts, they are pretty much on their own to categorize the spoils.