Dear Sir This is Anna,the sales manager of Redview GPS in China.For more about us VT680 is a GPS tracker which can work with CAN bus to vehicle info from ECU. Following info can be read out without additional sensor : tank fuel, speed, RPM, engine and weight info etc. This is widely used in truck tracking application. I would appreciate if you forward this letter to Technical Manager or to other expert responsible for technical integration of new products in your company, or provide me with his contact for we could discuss all the details of our future cooperation. Your early reply is highly appreciated. Best Regards Anna