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 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. 0-100km 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 protocol gasoline vehicles produced in the United States after 2004, and the OBD2 protocol gasoline vehicles produced in other regions after 2008. Not applicable for the following vehicles: The following common models are not applicable to OBD2: Incompatible: American models: , , Sail, Chrysler, 2004 and before 2004 Incompatible: French and Italian models cannot be used: such as , Maserati, DS, Peugeot, , Simca, Amilcar, etc. Incompatibility: Japanese models cannot be used: , 6, Infiniti (QX50 q50 q501), 2013 Avanza, IS250, EX250, ES300H, Jazz, CRV and cars produced before 2008, etc. Incompatible: South Korean Kia and some models: 2013 Sonata, Kia Soul PS 2017, etc. Incompatible: gasoline-electric hybrid and diesel vehicles, pickup trucks, RVs, cars with modified car computers, Chrysler Group, all brands of Group models.