5.5″ HD OBD2 Car HUD Head Up Speed Display Over Speed Warning Plug & Play

About this item 1. Available for cars with OBD2 and EUOBD port(Car automatic diagnosis system), plug and play. 2. Rich contents: Speed, engine RPM,water temperature,voltage, fuel consumption, engine fault code.Automatic and manual brightness adjustment mode,driving without glare. 3. Display mode: default mode, high-speed mode, automatic mode.Engine RPM alarm can help to fuel-efficient by shifting, and is good for novice. 4. Kilometer and Mile can be switched freely.Over speed alarm include single-speed alarm and four-stage alarm. 5. Screen 5.5 inch HD display, easy for read. Auto power on/off: HUD start and off with vehicle started and shutdown, effective of the car battery;retaining the manual switch mode,more easy to control HUD.