HUD Head Up Display OBD2 On-board Computer Windshield Projector Car Digital Display Speedometer Auto Accessories M5 M3 M8 M13 Introduction: HUDshort forHead Up Display.It displays driving datas on the front windshieldsuchas speed,RPM,fuel consumption,water temperature,voltage on the car front window glass;avoiding drivers unsafety because of watching the instrument while driving.Drivers can read the driving information instantly , and can always keep the best state on the waywith HUD. Please note: Please unplug the HUD,when you wont drive your car for more than a week.Due to the OBD equipment for long power, standby current is 20ma around,in theory, the use time of a common battery is 1 month,surely,situation of each car is different,it is recommended to unplug the OBD device if your car doesnt been used for a long time. M3 Producto funciones: 1.Multi function: Speed, Water temperature, Voltage 2.Engine icon, Water temperature icon 3.Voltage icon, Fatigue driving icon 4.Light sensor:HUD can automatically adjust the brightness according to the environment 5.Speed unit: MPH- mile, KM/H- kilometer M5 Producto funciones: 1. Lightsensor(Automatically adjust the brightness according to the environment) 2. RPM=the rotational speed of the engine. 3.KM= Travel distance 4.= Water temperature in Celsius 5.M= Distance travelled miles 6.°F= Fahrenheit 7. A= Accelerated speed measurement 8.COLOCK 9.MIN= Driving time 10.V =Battery Voltage 11.L/100KM= Fuel consumption Liter/100 kilometers 12.L/H =fuel consumption Liter/hour 13.Multifunction display 14. KM/H= Kilometers/hour, MPH= Miles/hour M8 Producto funciones: 1. Ambient decorative lighting 2. Engine RPM 3. Fault code alarm 4. Fatigue driving alarm 5. Alarm icon 6. Light sensor:HUD can automatically adjust the brightness according to the environment 7. Speed unit: KM/H , MPH 8. Multi-function zone: speed,water temperature,battery voltage,driving distance 9. Water temperature icon 10. Battery voltage icon M13 Producto funciones: 1. Light sensor:HUD can automatically adjust the brightness according to the environment 2.Decoration icon 3.Engine speed icon(RPM) 4.From left to right are Error icon, Water temperature icon, Voltage icon Fatigue driving icon 5.Mufti functions : speed,RPM,water temperature ,voltage,Fuel consumptiondriven distance 6.LHK=fuel consumption: display instantaneous fuel consumption at idle speed,and Display the instant fuel consumption of 100 kilometers during driving MPH=Speed Unit in mile KM / H=Speed Unit in kilometer M10Producto funciones: 1. decorative lightingand RPM light 2. Speed 3. Speed unit: KM/H , MPH 4. Light sensor:HUD can automatically adjust the brightness according to the environment 5. Multi functions: Instantaneous fuel consumption, 100 km acceleration, water temperature, voltage, speed, trip distance, travel time, clock 6. Unit of functions: RPM=Rotational Speed,Trip=trip distance,L/H=Instantaneous fuel consumption, L/100KM=100 km instantaneous fuel consumption, a+=100 km accelerationtime 7. Alarm icons: Engine failure icon,water temperature icon,Voltage icon, shift reminder icon, speed alarm icon,Fatigue driving icon M3 Picture: M5 Picture: M8 Picture: M13 Picture: M10 Picture: