1. Read the fault information through the car OBD interface, which can detect 10000+ fault codes of the vehicle and display them in text. After the vehicle fault is eliminated, the fault information can be cleared. 2. Built-in GPS+Beidou and Galileo chip modules, can receive 32 satellites, high-precision altitude, time, latitude and longitude and other information. 3. Split bracket, the bracket can rotate 360 degrees in all directions. 4. Using high-temperature resistant imaging components, COB packaging constitutes an integrated light surface source, and the light-emitting surface dissipates heat evenly, which is highly efficient and energy-saving. 5. Simplified Chinese, Traditional Chinese, and English function settings, switch at will. 5. OBD mode display information: vehicle speed, time, rotation speed, water temperature, voltage, driving time, driving distance, number of satellites, driving direction, latitude and longitude display, oil temperature, turbo pressure, acceleration test, brake test, altitude Alarm function: overspeed alarm, high water temperature alarm, low/high voltage alarm, fatigue driving reminder, engine failure alarm 6. Display information in GPS mode: speed, time, voltage, driving time, driving distance, number of satellites, driving direction, latitude and longitude display, acceleration test, brake test, altitude Alarm function: overspeed alarm, low/high voltage alarm, fatigue driving reminder