The optional scanner card (GDM-SC1), creates a self-contained multi-point measurement solution with plug-in design. This approach eliminates the complexities of multi-point measurements and data processing. The scanner lets users effectively measure multiple channels connected to a single GDM-8255A.

Each scanner card has 16 general purpose channels and 2 extra channels for current (ACI, DCI) measurements. All channels are fully isolated (Hi and Lo). Up to two scanner cards can be inserted into each multimeter for a maximum of 36 channels. These optional modules not only provide customers with a complete hands-free multiple measurement solutions but also provide a cost-effective upgrade path compared to purchasing dedicated instruments.