GPS HUD display for vehicles with adjustable screen brightness1、OBD Interface: The GPS HUD adopts color HD LCD screen display with high resolution, supports 9 OBD protocols, can be connected to your car OBD interface to read the real time data output by the ECU. 2、Dual Channel Module: The multifunction GPS OBD HUD can obtain the satellite signal data though the GPS and for Beidou satellite dual channel module, the dual signal is more stable. 3、Safe Driving: The HUD display adopt HD display screen for dazzling and clear effect, you can drive without bowing your head to pay attention to vehicle dynamics at any time, more secure to drive. 4、Adjustable Screen Brightness: The carbon fiber style HUD Monitor adopts light source sensor to sense the light so as to adjust the screen brightness, freely rotating and high sensitivity. 5、Intelligent to Use: The intelligent HUD display can start with the car to show the working environment and technical indicators, and it also features the automatic sleep function when parking.