- Product cannot be plug and play and needs to be re-wired. Professional installation is strongly recommended. -If you can provide the original instrument circuit diagram, we can modify the product to plug and play. Display Large screen full anti-glare display; Speedometer: two and a half digits, maximum speed 199km / h, error + 10%; Dom Odometer: six digits, minimum 0.1km; Function Indicator function: left turn signal, high beam, right turn signal; Function File display function: N light ·, 1-4 files; Function Alarm function: low oil volume alarm. Adjustment Automatic light brightness adjustment: The brightness of the instrument is automatically adjusted according to the external environment.