What are the SD memory card option (/EM1) model functions and specifications?

The SD memory card can be used to save measured data, print out measured data (dot model only), and as an external memory medium. You can save and load settings.
Medium: You cannot overwrite the SD memory card (SD/SDHC, up to 32 GB). If free space is limited, you have to make space. Format: FAT32 or FAT16.