Geyiren M9 HUD 5.5 inch Car Head Up Display with OBDII & EUOBD System, Speed & Over Speed Alarm, RPM, Water Temperature & High Water Temperature Alarm, Voltage & Low Voltage Alarm, Instantaneous Fuel Consumption, Average Fuel Consumption, Driving Distance Measurement, Shift Reminders, Fatigue Driving Reminders, Engine Failure Alarm, Eliminate Fault Code, Freely Switch Between Kilometers and Miles (Black)

About HUD HUD short for Head Up Display. It displays driving datas on the front windshield such as speed, rpm, fuel consumption, water temperature, voltage; Avoiding drivers become dangerous because of watching the instrument while driving. Drivers can read the driving information instantly, and can always keep the best state on the way with HUD. Features 1. Available for cars with OBD2 and EUOBD port (Car automatic diagnosis system), plug and play. 2. Screen 5.5 inch HD display. 3. Multi-color design makes the screen more abundant and easier to read. 4. Nano-technology to eliminate double reflections,more clear. 5. New function: Driving distance measurement 6. Rich contents: Speed, rpm, water temperature, voltage, instantaneous fuel consumption, average fuel consumption, driving distance measurement, voltage, shift reminders, fatigue driving reminders, low voltage alarm, high water temperature alarm, over speed alarm, engine failure alarm, eliminate the fault code, freely switch between kilometers&miles. 7. Auto power on/off: HUD start and off with vehicle started and shutdown, effective protection of the car battery;retaining the manual switch mode, more easy to control HUD. 8. Automatic and manual brightness adjustment mode,driving without glare. Display Functions 1. Decorative light. 2. Engine RPM. 3. Speed. 4. Speed unit (KM/H, MPH). 5. Multi-functional area 1: Engine RPM, voltage, single driving distance(KM, Mile), single driving time(Minutes), water temperature. 6. Unit for multi-functional area 1. 7. Multi-functional area 2: fuel consumption, single driving distance (KM, Mile). 8. Unit for multi-functional area 2. 9. Icon: Setting, over speed alarm, fault code, light sensor, fatigue alarm, shifting reminding, water temperature alarm, low voltage alarm, buzzer mark.