Multiple alarm functionsThis HUD is equipped with 4 abnormal alarm functions. Overspeed alarm, speed alarm, high water temperature alarm, low voltage alarm. Let the driver have no worries while driving.
Please note that: This product adopts GPS and OBD2 dual mode, equipped with an OBD cable and a USB cable. The OBD cable can use two modes, and you can switch freely. USB cable can only use GPS mode, which is provided for vehicles without OBD interface. Please note that if your car is a model before 2008, you can only use GPS mode. If you are a model after 2008, you can use dual mode.