Description: display: HUD Display. It display the driving windshield of , such as vehicle speed, speed, water temperature, voltage, single-segment driving distance, etc. Safe Driving: Avoid 's viewing of the instrument during driving and affect . The HUD can instantly read the driving information condition that the large field of view does not , so that can always maintain the best driving state Over-speed Alarm: automatically alarm if overspeed, so from looking down the speedometer and drive safely. freely set this value. settled the over-speed value, once over value, give a warning. Adjustable Brightness and Angle: The brightness can automatically adjust by environment. Hud can automatically adjust the brightness according to the environment, also manually to adjust the brightness. The HUD setting angle also can be adjustable. Universal: 360-degree speed measurement without blind spots, at . brightness through sensor for driving. install, no professional installation is required. suitable for trucks use or for BeiDo signal guided calculation. Specification: Material: ABS plastic Multi function : speed,engine RPM,water temperature,voltage,driving distance Fatigue driving , Engine Error Water temperature ,voltage Switch Speed unit: KM/H=kilometer/hour, MPH=Mile/hour. Alarms: over-speed alarm, high water temperature alarm, low voltage alarm, fault , fatigue driving alarm. Size Chart: 95x62x49mm/37.40x24.41x19.29inch Package Includes: 1 Piece HUD Display Projector 1 Piece cable 1 Piece User manual 1 Piece Anti skid pad 1 Piece cleaning cloth