Hi,
Here's the <a href="
http://sine.ni.com/nifn/cds/view/main/p/sn/n1:7689,n25:13/lang/en/nid/1036/ap/daq" target="_blank">product page </a>that has all National Instruments devices capable of strain gauge measurements.
However, I would like to point out that the SCXI version of the modules, requires an SCXI chassis , and the SCXI chassis is connected to a 68 pin DAQ device.
At the bottom of the product page, there's a phone number and a " Talk to an expert " links. I recommend using one of those to contact one of National Instruments Technical representatives.
Regards,
Faris A