A8 Multi-function Head Up Display, 5.5 Inches Safety OBD Plug Play HUD with Vehicle Engine Speed alarm

Automatic adaptation car models, apply for cars in line with OBD2 or EU-OBD (onboard automatic diagnostic system)
Display rich content: speed,engine speed,water temperature,battery voltage,instantaneous fuel consumption,average fuel consumption,mileage measurement,shift reminding,fatigue driving reminding,low voltage alarm,high temperature alarm,speed alarm,engine fault alarm,fault code elimination,free switching between kilometer and mile
Automatic and manual brightness adjustment mode, driving without glare. Auto power on/off with vehicle starting and shutdown, effective protection of the car battery, while retaining the manual switch mode, and more beneficial to control the HUD
Multi-color design for the large 5.5 inches HD screen makes it more abundant and easier to read.


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