Fuel Injectors' newest 6-cylinder model, the FM-c501 Ultrasonic Off-Motor S&D Unit tests and cleans automotive, motorcycle and marine injectors. This complete tool and accessories kit provides dynamic, static flow and volumetric tests using spray pattern analysis and regulated injection pressure. Users can also perform injector leak tests and electrical coil and resistance tests. The dual scale gauge displays operating pressure, and the variable injector pulses programmable operating times. Other features include an auto-detection/firing of high/low impedence injectors; injector back flushing; LED-illuminated spray pattern viewing chambers; auto or manual control functions; injector coil testing and analysis; volumetric cylinders auto drain.