Moobody OBDII Speedometer Head-Up Display HUD for Car Diagnostic Detector Safe Driving

6 Major Function Switching: Speed, fuel consumption, acceleration time per 100 km,voltage, water temperature,current mileage. Five Alarm Functions: Overspeed alarm, RPM alarm, low voltage alarm, water temperature alarm,fatigue driving reminder. Hardware Upgrade:Using low- chips, non-destructive repetition to completely solve problem of premium consumption! Intelligent switch, start and close with car. Brightness Upgrade:It can be clearly displayed even when driving in sun during day. Software Upgrade:Add speed lubrication effect, no jump speed, more consistent and smooth display, and increase compatibility of starting and stopping, vehicles, and gasoline vehicles.