Rich display content-Driving speed, engine rpm, water temperature,Voltage, fuel consumption, brake test, turbine pressure,Inlet pressure, air-Fuel ratio, engine fault code alarm, low voltage alarm, over speed alarm, water temperature alarm, etc. Hd display-With a high definition tft lcd screen,Which displays the information more colorful,Clearly,Full of technology.A variety of operating interface modes and colors can be switched freely,It will bring more fun sense to your driving experience. Multi-Function-It has a hud head display function,A car performance test function,Engine data reading,And obd diagnostic trouble code to eliminate fault codes,Speed up test,Brake performance test.Can read 36 data from ecu. Compatible attention-The automatic and manual brightness adjustment mode, and more easy to control the hud.This product just available for cars with obd2 agreement and eu-Obd agreement(European region: after 03 years, other region:After 07 years) guarantee-Ce fcc rohs certification, superior quality. If you have any questions about this product, please feel to contact us. We will get back to you as soon as possible and help you solve the problem.