A2 Car Head-up Display KM/h MPH Overspeed Alarm Multifunction OBD2 Driving LCD Stopwatch Smart Gadgets Car HUD Digital Gauges      Product Description:   Working Voltage: ObdII 12v  Maximum Operating Current: 250mA  Dedicated Mode Standby Current: <3mA  Working Temperature: <-25℃~80℃  Applicable Models: 1. Suitable for models with OBD2 interface and vehicles with OBD2 protocol             Common Mode: (Function)   1. Vehicle speed 2. Speed 3. Water temperature 4. Turbine meter 5. Fuel consumption 6. Voltage 7. Speed alarm 8. Overspeed alarm 9. PlD interface 10. Engine load 11. Intake pressure             Selling Point:   1.2-inch LCD screen, high-definition display, plug and play, non-destructive installation  2. Safety: It is not the traditional HUD that obtains data in a disconnected manner. It does not send any commands to the two ECUs of the car, and adopts a more efficient silent monitoring mode to obtain data.  3. It can coexist with other devices that read ECU and will not clash (only for dedicated mode)  4. Multiple alarm modes: overspeed alarm, speed alarm, low voltage alarm  5. Free switch between kilometers  6. 3 language settings: Simplified Chinese, Traditional Chinese, English      Package included   1x host,  1x anti-skid pad,  1xOBD2 cable,  1x manual