Safety interface cable for connecting the optically isolated serial interface port of the ScopeMeter or power quality analyzer to a standard USB port on your PC. Optical isolation enables potential-free measurements at mains voltages or higher without disconnecting from the PC. Supports the Fluke 120 Series, Fluke ScopeMeters 190 Series, and the 43, 43B and 430 Series Power Quality analyzers, Supports Windows Vista/XP/2000/Me/98 SE, Cable length (extended): 1.5 m