3.5'' Three Screen OBD2+GPS Smart Car Speedometer HUD Gauge Head Up Display RPM OBD2 Car OBD2 GPS HUD Speedometer Features Heads Up Display: New HUD with both OBD2 and GPS chipsets. OBD2+GPS Gauge, 3 LCD Screen Display, OBD2 Car OBD2 GPS HUD Speedometer Can stick to windshield or put on dashboard, LED display more safe for driving OBD2+GPS System: OBD2 Car OBD2 GPS HUD Speedometer Display vehicle data such as speed, engine RPM, battery voltage, fuel consumption, coolant temperature, turbo, oil temperature etc. Warnings related to exceeding the programmable speeds or RPM. Very clear in daytime and night, HUD will power on/off with engine on/off Multi Reminders And Alarm: 9 kinds display interface. The display interface can be free switch. Alarm function, improve driving safety: speed alarm/ high water temperature alarm/ low voltage alarm/ fatigue driving alarm/ engine fault alarm/ overspeed alarm/ gear shift reminder/ eliminate fault code.When the speed is switched to MPH per mile, the water temperature will be automatically switched to Fahrenheit degrees, the single driving distance will also be automatically switched to Miles. Plug And Play: OBD2 Car OBD2 GPS HUD Speedometer is suitable for all cars with OBD2 interface.Plug-and-play HUD Easy To Install: OBD2 Car OBD2 GPS HUD Speedometer Stick to windshield or put on the dashboard. OBD2 Car OBD2 GPS HUD Speedometer Specification: OBD2 Car OBD2 GPS HUD Speedometer Applicable ModelsUniversal OBD2 Car OBD2 GPS HUD Speedometer Power Supply ModeOBD Interface Power Supply Speed UnitMPH and KMH Turbo Boost Pressure100kPa & PSI & BAR Fuel Consumption UnitsKM/L and L/100km Display Interfaces16 kinds of interfaces for choice Left 2 Screens3 Different Interfaces for Choice Dual SystemOBD2 + GPS, If your car's OBD2 Protocol is incompatible, then you can choose GPS Working System, GPS mode can work with all cars Package Included 1 x OBD+GPS Gauge 1 x OBD Cable 1 x Tape 1 x Hexagon Wrench 1 x Crowbar 1 x Manual