X-431 Heavy Duty Product description Including all the advantages of its predecessor, X-431 Heavy Duty is designed to cover heavy duty diesel and gas-fueled vehicle models of 12V & 24V voltage. It features ergonomic design, compact structure, convenient use and strong expandability. Product character 1. Compact and ergonomic design 2. Professional & durable tool 3. Covering heavy duty diesel and gas-fueled vehicle models of 12V & 24V voltage 4. No need for battery conversion when testing 24V trucks 5. Fast upgrading via the Internet to keep up with the latest vehicle models 6. International design to adapt to all diagnostic sockets 7. Including all the electronic control systems 8. Unique data transfer to ensure fast operation 9. Strong waveform display function 10. Integrated connector to offer great performance 11. Connection with PC to keep service records through optional X431 PCCENTER 12. Multi-language choice 13. Handwriting input on large touch screen 14. Large compact flash memory for data storage