2020 car electronic hud navigation with gps F9-BT Car Head Up Display obd digital

2020 car electronic hud navigation with gps F9-BT Car Head Up Display obd digital 

OBD2+GPS HUD,can work to all the cars, 2 systems can be freely switched by users.

Function

Speed(Km/h or MPH), Over speed alarm
-Coolant(°C or °F), Coolant alarm -RPM, RPM Alarm
-Battery Voltage, BAT Alarm -Fuel consumption -trip distance,odometer
-TIM(driving time) -Speedup test
-Brake test
-Oil temperature -Turbo pressure
-air fuel ratio
-display fault code in txt, fault code alarm,clear the fault code
-48 professional date stream