The Fluke PM9080 Optically Isolated RS-232 Interface Adapter Cable is for use with the Fluke 120 and 190 Series Scopemeters. Compatible with Fluke ScopeMeter® test tools, Power Harmonics Analyzers, Graphical MultiMeters and MultiFunction Counters. The Fluke PM9080 is a safety designed serial interface for digital hard-copy output to serial printer or remote control via a PC.