Product description  Including all the advantages of its predecessor, X-431 Heavy Duty is designed to cover heavy duty diesel vehicle models of 12V & 24V voltage. It features ergonomic design, compact structure, convenient use and strong expandability.       Product character  1. Compact and ergonomic design2. Professional & durable tool3. Covering heavy duty diesel vehicle models of 12V & 24V voltage4. No need for battery conversion when testing 24V trucks5. Fast upgrading via the Internet to keep up with the latest vehicle models6. International design to adapt to all diagnostic sockets7. Including all diesel vehicle the electronic control systems8. Unique data transfer to ensure fast operation9. Strong waveform display function10. Integrated connector to offer great performance11. Connection with PC to keep service records through optional X431 PCCENTER12. Multi-language choice13. Handwriting input on large touch screen14. Large compact flash memory for data storage