M3 HUD FOR ALL CARAuto Projector Head Up Display 1.Multifunction: Speed, Water temperature, Voltage2. Short Press- To switch voltage, water temperature,vehicle speed,enter into menusetting to switch menu options or parameter values Long Press- To enter into menu settings (see instructions for Menu 1-12) and press 5 seconds to save and exit3. Short Press- Menu - and parameter valueLong Press- To turnon andoff the buzzer(default choice is buzzer on,you can freely choose to turn on or off)4.Engine icon, Water temperature icon 5.Voltage icon, Fatigue driving icon 6.Speed unit: MPH- mile7.KM/H- kilometer8.OBD connection port 9. Short Press- Menu + andparametersvalue + LongPress- Long press till the screen is all on, and the fault code is eliminated, long press again to exit10. Power switch- Long press for 5sto turn off,again to turn on1. Satellite icon : After the satellite is found, it stops flashing and goes out before it can be used normally2. Light sensor :HUD can automatically adjust the brightness according to the environment3. Short Press- To switch voltage, water temperature,vehicle speed,enter into menusetting to switch menu options or parameter values4. Short Press- Menu - and parameter valueLong Press- To turnon andoff the buzzer(default choice is buzzer on,you can freely choose to turn on or off)5. Buzzer6. Compass : N (North) E (East) W (West) S (South)7. Vehicle speed display : display the current vehicle speed8. Speed unit : MPH- mile, KM/H- kilometer9.GPS connection port10. Short Press- Menu + andparametersvalue +LongPress- Long press till the screen is all on, and the fault code is eliminated, long press again to exit 11. Power switch- Long press for 5sto turn off,again to turn onCAR SPEEDOMETER m3 it will automatically alarmif overspeed so it can save youfrom looking down the speedometer and drive safely.LIGHT SENSORhud can automatically adjust the brightness according to the environmentEASY INSTALLATIONEasy to install plug and playOBD2 EOBD HUD HEAD-UPDisplay Windshield Digital.Car Speed Projector On-BoardComputer Fuet Mileage AlarmGPSHUD HEAD-UPMulti functions display clock battery voltage altitude satellite numbers,mileage,trip timeLIGHT SENSOR : HUD can automatically adjust thebrightness ccording to the environmentMILEAGE UNIT :TRIP means the driving distance from engine start to offFOR ALL CARPerfectly compatible with vans trucks buses cars off-road vehicles SUVs and other vehiclesGPS SYSTEM: Use a USB cable to connect to the car cigarette lighter interface. FQA: How to Install the HUD Car Computer: 1. Insert the product into the check port on the vehicle OBD computer; 2. Insert the other end of the product into the data interface of the host; 3. After the product is inserted into the host and the car is started, wait for the communication linkage between A202 and the car; 4. After the linkage is successfully established, the host will send a drop"sound, at the same the display screen displays vehicle protocols and then indicates that it is the first time the product is used to set up parameters. (International universal OBD plug protocol definitions stipulated by SAE). Common problem: Q1: Why does it automatically turn off after a period of time? A1: Its default sleep time is 30s, So when your engine is turned off, it will automatically turn off after 30s .please choose Sleep Time Set"to set the sleep time. Q2: Why my car dashboard lights or fault alarm lights are caused to be lit up abnormally?