National Instruments RM-4339 calibration: This week we successfully added another National Instruments device, the RM-4339, to our library of accredited National Instruments device calibrations. The RM-4339 is designed to offer rack mount convenience and provide connectivity for up to three PXIe-4339 cards. The RM-4339 replaces up to (3) TB-4339 terminal blocks. The RM-4339 does need verification and we can do it! We can also calibrate the PXIe-4339 cards, too.