The Matco Tools Maximus Scan Tool Heavy Duty Module, No. MDHDM, extends the existing Maximus 2.0/2.0A tablet scan tool coverage with heavy duty truck capabilities. The device communicates via Bluetooth or can be hard-wired to the vehicle. This unit supports an assortment of key functions, including: Cylinder Compression Test, Injector Cut Out Test, DPF Regeneration and more. The MDHDM works on multiple brands, including: Caterpillar, Cummins, Detroit, Freightliner, Fusco, Hino, International, Isuzu, Kenworth, Peterbilt, Sterling, Volvo and more.