L8 HUD Head Up Display OBD 5.5 Inch Screen MPH/KM Vehicles Speed Warning System

1. Plug and play, HUD can automatically adapt to vehicle type which in line with OBDII.2. Overspeed reminding, the of overspeed will flicker and alarm when the vehicle exceeds the speed limit set up in advance.3. Shift reminder, it will remind the driver to to save fuel when the engine speed and vehicle speed come to .4. Fatigue driving alarm, after driving for 4 hours, the fatigue driving indicator light will flash to remind the driver to have a rest.5. Automatic adjustment of luminance, brightness can be changed with change in the outside world.6. Multi-functional display, clock, rotate speed, water temperature, battery voltage, throttle angle and fuel consumption.7. Real-time one hundred kilometer \/ instantaneous fuel consumption, display fuel consumption of one hundred kilometer when the vehicle is moving.8. Engine speed alarm, it contributes to shift gear in time to save fuel also has significance to new driver.9. Flexible brightness adjustment, the brightness can be adjusted automatically or manually to reach the best state which is in harmony with the environment.Type: Head up display L8Display type: DigitalCar Make: with On-Board Diagnostic OBDII interfaceEnvironment: ~40c+80c atmospheric pressure 86-106kpaAlarm sound level: or equal to 30dbWorking voltage: DC9-16VWorking current: 40mASleeping current: 15mACompass precision: +\/-1 degreeSpeed range: 0-400KMcolour:blackMaterial:ABSsize:Product Size: (4.92 x 2.95 x 0.59) inch \/ (12.5 x 7.5 x 1.5)cm (L x W x H)Screen Size: 5.5 inchPackage Contents:1x OBD II Head up display1x OBD Cable1x Reflecting Film1x User ManualNote:If you find out that HUD displays only voltage for and then turn off automatically, this is because the interface isn't OBD II or EOBD. So we suggest checking twice whether your interface is OBD2\/EOBD or not before purchase.for old cars, you should set your start voltage at 12.8V, for your battery is too old to provide 13.2V voltage.The speed this HUD displays is 5km faster than actual speed by factory default. You can fine tune or adjust it to your personal preference.Warm Note: This item is not compatible with European \/ American cars manufactured before 2003 or Asian cars manufactured before 2007. Please notice it.Only the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +\/- 1-3cm.