ScanGauge SGDFFP J1939 & J1708 Vehicle Monitor (Frustration Free) Affordable Compatibility in a Compact Design Specialized Cable - Works on 9 pin and 6 pin plugs Monitor The Most Vital Systems Exclusive Programmable Gauge System Performance Monitor Affordable Compatibility in a Compact Design Specialized Cable - Works on 9 pin and 6 pin plugs Monitor The Most Vital Systems Exclusive Programmable Gauge System Performance Monitor. Easy to install no tools required