Features: 1.Reflect Information: The main function of the HUD display is to reflect the information of the car dashboard, such as vehicle speed, RPM, water temperature, voltage, travel distance, etc. 2.Ensure Driving Safety: OBD2 smart gauge can keep the driver's eyes on the road all the time, no need to look down to read the instrument, avoid danger and improve driving safety. 3.Multi Function Meter: OBD2 system is multifunctional, it can display vehicle speed, engine speed, water temperature, voltage, fuel consumption, altitude, clock, driving time, driving distance, number of compass satellites. 4.Alarm Function: Car HUD speedometer is really safe to use, it has overspeed alarm, speed alarm, water temperature alarm, voltage alarm and fatigue driving reminder. 5.Plug and Play: This car HUD display comes with 1 cable, OBD2 cable, just plug it in and you can use it and modify your car, convenient to use. Specification: Item Type: HUD Display Material: ABS + Metal Function: 1. Automatic photosensitive: automatically adjust the brightness and darkness 2. Engine Speed (RPM) 3. Single driving distance (M/KM) 4. Water temperature (/ ) 5.a+100km acceleration time 6. Clock 7. Single travel time 8. Voltage 9. Fuel consumption (L/100KM fuel consumption per 100 kilometers/L/H instantaneous fuel consumption) Alarm Function: Overspeed alarm, speed alarm, water temperature alarm, voltage alarm, fatigue driving reminder Fitment: The OBD2 agreement gasoline vehicles produced in the United States after 2004, and the OBD2 agreement gasoline vehicles produced in other regions after 2008. Not replacement for following vehicles: The following common models are not applicable to OBD2: Incompatible: American models: Replacement for Dodge, replacement for JEEP, replacement for Sail, replacement for Chrysler, 2004 and before 2004 Incompatible: French and Italian models cannot be used: such as: replacement for Fiat, replacement for Maserati, replacement for DS, replacement for Peugeot, replacement for Citroen, replacement for Simca, replacement for Amilka, etc. Incompatibility: Japanese models cannot be used: replacement for Suzuki, replacement for Mazda 6, replacement for Infiniti (QX50 q50 q501), 2013 replacement for avanza, replacement for is250, ex250, ES300H replacement for jazz, CRV and cars produced before 2008, etc. Incompatible: South Korean Kia and some replacement for Hyundai models 2013 replacement for Hyundai Sonata, replacement for Kia Soul PS 2017, etc.) Incompatible: gasoline-electric hybrid and diesel vehicles, pickup trucks, RVs, cars with modified car computers, replacement for Chrysler Group, all brands of replacement for Fiat Group models.