Description:HUD 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. Rich contents: Speed, engine RPM,water temperature,voltage, fuel consumption, engine fault code.3. Display mode: default mode, high-speed mode, automatic mode.4. Kilometer and Mile can be switched freely.5. Screen 5.5 inch HD display, easy for read.6. 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.7. Over speed alarm include single-speed alarm and four-stage alarm.8. Engine RPM alarm can help to fuel-efficient by shifting, and is good for novice. 9. Automatic and manual brightness adjustment mode,driving without glare.Main display information:1.Brightness sensor2.Water temperature icon3.Water temperature scale4.Engine RPM scale5.Over speed alarm6.Gear display7.Multi-function value8.Icon for engine RPM,inlet pressure,water temperature,clock,voltage,ignition angle,acceleration time for 100 Kilometers9.Throttle position and fuel consumption10.Multi-function value 11.Buzzer mark,engine fault,fatigue alarm,voltage alarm,data transfer 12.Speed unit 13.Calls and SMS alerts(this function is not opened now)HUD installation:1. Know your vehicle brand,HUD work for cars with OBDII agreement or EU OBD agreement. Open the engine hood and find the sticker below it (see the below picture 1), if it has words like OBDII CERTIFIED, then it can be installed. 2. Find out the 16 pin diagnostic link (see the below picture 2) of the vehicle and connect it well with OBDII connecting line.Specification:Environment temperature: -40c- + 120c atmospheric pressure 86-106KPaRelative Humidity: 10% -95% environmental noise <= 60dB (A)Alarm sound level: "= 30dB (A)Working voltage: 11V ~ 16Vdc (12Vdc / 350mA)HUD Size: Approx. 150 x 85 x 14(mm)/5.9*3.3*0.6inHUD Weight: 280gApplicable scope of OBD2:The OBD2 agreement gasoline vehicles produced in the US after 2004, and the OBD2 agreement gasoline vehicles produced in other regions after 2008.The following common models are not applicable to OBD2:1. Incompatible: American models: For Dodge/JEEP/Sail/Chrysler, models produced in 2004 and before 2004.2. Incompatible: French and Italian models: For Fiat/Maserati/ DS/Peugeot/Citroen/Simca/Amilcar, etc.3. Incompatible: Japanese models: For Suzuki/for Mazda6/for Infiniti QX50 q50 q501/for Avanza 2013/for IS250, EX250, ES300H/for Jazz, CRV and cars produced before 2008, etc.4. Incompatible: South Korean models: For Kia Soul PS 2017/ for Hyundai Sonata 2013, etc.5. Incompatible: gasoline-electric hybridand dieselcars, pickup trucks, RVs, modified car with car computer, for ChryslerGroup, for FiatGroup's all brand models.OBD2 HUD is not available for all brands of cars under the for FiatGroup, but GPS HUD can be used. Pickup trucks, dieselvehicles, gas-electric hybridvehicles and pure electric vehicles cannot use OBD2 HUD, only GPS models.It is recommended to buy GPS models directly for Italian and French cars.Package included:1 x HUD1 x OBD Cable1 x Reflecting Film1 x Anti-slip Pad1 x English User ManualNote:1. Please allow 1-3mm error due to manual measurement. Thanks for your understanding..2. OBDII HUD reads OBDII parameters transmitted through a vehicles CAN datastream, it will only work on 2008+ model year vehicles.3. Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.