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ADC converter for strain measurement

I am considering the NI-USB 9219 or the NI-USB 9237 for strain measurements from a load cell. The 9219 is cheaper and can be used for other applications as well. What are the advantages of the 9237 compared to the 9219?
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Biggest advantage is that the 9237 is specifically designed to be used with load cells and other strain devices.  This includes providing up to 10VDC excitation to the load cell.  It also includes digital and analog filtering optimized for load cell signals.  Another important feature is the built in shunt calibration.
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