The BMB Tester is a technological innovation based on traditional CAN cards, breaking the limitations of data collection and measurement in Tesla's BMS system. It directly measures various battery data without relying on Tesla's complex BMS system, avoiding the BMS from processing the original battery pack data to obtain real-time authentic data. The measurement process ensures no harm to the human body, battery packs, vehicles, or other systems. With a dedicated interface design, it quickly connects to Tesla's battery packs, requiring no complicated installation steps. It is plug-and-play, enabling non-professionals to use it quickly, which greatly improves work efficiency.