SWR PRO Real-Time Full Option Tracker, the smartest GPS for all types of vehicles; trucks, lorries, buses, and heavy machineries. With high speed 32-bit processor and backup battery, it could smoothly and long-lastingly display real-time vehicle usage. Designed for specific purposes and usages, it reads data directly from ECU which allows it to be highly stable and accurate. Enhance the efficiency for optimum performance with device options. Being more than a tracker, this device is suitable for hazardous material transportation and high safety requirement.