WYING C800 Car GPS OBD2 HUD Head-up Display Driving Recording Projector Overspeed Alarm Auto Parts Rich data for different requirements---1.RPM(OBD mode), Satellite numbers(GPS mode) ---2.OBD mode:Battery voltage/Fuel consumption/Satellite numbersGPS mode: Battery voltage/Satellite numbers ---3.Icons: Satellite signal / Error code /Fatigue driving /Driving direction ---4. Speed ---5.Speed unit: KM/H=kilometer/hour, MPH=Mile/hour ---6.V=Unit of voltage, LKH=Unit of fuel consumption, including Instantaneous fuel consumption (idle speed),100 km instantaneous fuel consumption (in driving), Average fuel consumption (after driving) ---7. Multi-Functions display: OBD mode:RPM,single trip distance,altitude,driving time,clock,water temperature,driving direction GPS mode:Clock,driving direction,single mileage,altitude,driving time ---8. Unit icons: RPM=engine speed, Trip=trip distance, ASL=Altitude, MIN=driving time, /F=Water temperatureHD Display, No double image, Clear effect in daytime Metal nanotechnology on the front side to remove unwanted reflections for clearer displayUnique Design Professional manufacturer High-end qualityFast one-touch switching OBD / GPS system freely switch Four-channel dual system professional design Satellite automatic timing digital clock No deviation, no battery, no explosion risk Car satellite altitude meter Driving time calculation Do you want to know how long it will take from home to the company?Upgrade new features Water temperature and voltage alarm are freely adjusted Display 3 Different Fuel consumptionKnow the fuel consumption,and improve the bad driving habitsGPS system display 100% universal Product parameters Button functions1.Short pull up:(1)switch the voltage and fuel consumption (2)to add the default value after entering into the the setting mode2.Short pull down:(1)switch the water temperature/trip distance/driving time/clock/speed-up test (2)to decrease the default value after entering into the the setting mode 3.Short press in:(1)switch the display mode (2)add the menu after entering into the setting mode 4.Long pull down:turning off/on the alarms 5.Long pull up:all lights will be on, to eliminate the fault code, do it again to save and exit 6.Long press in:to enter into the setting menu(menu 1-11,details please refers to the manual),when finish the adjustment, long press in the button to save and exitProducts real shotAccessories ---1*Host---1*OBD line---1*USB cable---1*Anti-slip mat---1*Instruction