Plug and play: head display can auto adapt to vehicle type which in line with obd2 or euobd(on-board diagnostic system). comprehensive display: vehicle speed, engine speed, water temperature, fuel consumption, mileage, low fuel tips, engine failure. flexible alarm mode: head display can offer single-stage and four-stage over-speed alarm modes to choose to make driving safer. engine speed alarm: it contributes to gear in time to save fuel also has significance to new driver. automatic power on/off: starting and stopping with vehicle starting and stopping. moreover, it is also designed with hand switch function.
