24, yes 24 bit ADC module for less then $10. Let me count the bits, 1,2,3...yes 24 bits in all. So no need to have to amplify externally how level Wheatstone bridge type sensors, just read the millivolts, hell microvolts directly and still have more resolution then arduino's wimpy 10 bit ADC has.
We will have to see how the low noise performance of this module ends up with, as usually in the real world it's nearly impossible to actually be able to fully utilize 24 bits of resolution.
http://www.ebay.com/itm/121022291106?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1439.l2649
Lefty