Quick FYI for the bench-techs in the group. A few months back, I became aware of this device, as well as the others produced by the same fellow:
http://www.voltagestandard.com/DMMCheck_Plus.html He's producing several types of low-cost, precision voltage / current / frequency references. Prices are reasonable, especially when you consider the re-cal program. Any of these should be more than adequate for the vast majority of our reference / cal requirements. (I have no connection to the mfr. But I do like the product, and wanted to pass it along.)
