I am successfully and happily using USB RS-232 and SerialMagic Pro OS X to input readings/measurements from a Mahr 40EX digital micrometer AND a Mahr VC045 digital caliper. Data is put directly into Filemaker Pro system. There doesn’t seem to be any micrometer maker who makes Mac OSX drivers or software. SerialMagic Pro OS X bridges the gap very nicely.
