GQ GMC Data Viewer is a counter Data Viewer for GMC-280, GMC-300,GMC-300E,GMC-300E Plus and GMC-320. Use this software to download history data, then replay it back on PC with variable play back speed. You also can load a history data .bin file to play it back OR save the history data into Excel .CSV format. GQ Geiger Counter Data Logger PRO is a program that can be used for GQ Geiger Counter data logging. It provides support for the following devices: GMC-060, GMC-080, GMC-100, GMC-200,GMC-280,GMC-300,GMC-300E,GMC-300E Plus,GMC-320, GMC-320 Plus. It also works for any other Geiger counter with audio output port.