Product Review: This is a classic OBDii Head-up Display(HUD) with 5.5IN screen.Displays driving data on the front windshield such as speed, RPM, single mileage etc. HUD avoids the danger of drivers looking down at the dashboard, it ensures the safety of drivers because of watching the data on the car front window glass, and helps drivers to keep the best state on the way, keep you in a safe driving mode. Besides, a variety of operating interfaces and colors can be switched freely,bring more fun. Smart Product + Safe Driving + Fun For You! Display Data: vehicle driving speed, water temperature, voltage, fuel consumption, RPM, single mileage, total cumulative mileage, travel time, system time, intake pressure, acceleration test, brake test &reminder... Alarms: overspeed alarm, High water temperature alarm, Low voltage alarm, Shift Reminder, Engine fault alarm, Clear fault code, Free switching between kilometer and miles, KM/h & MPH Switch freely, °C & ℉ switch freely, Fatigue driving reminder... Product Highlights: 1. Plug and play: EUOBD & OBD cable - full 16 pins. 2. Large Screen: 5.5 inch screen for better sight view. 3.12 main functions & Shift Reminder 4. Speed Unit: KM/H & MPH. 5. Turbine pressure: PSI and KPA. 6. Fuel consumption unit: L/100km (instantaneous fuel & average fuel). 7. Bright sensor: adjust the brightness automatically. 8. Modern design: classic design, alarm icon in red and flash. 9. Interface: custom interface pre-set before start travel. OBD2 working mode are not compatible with follow vehicles: 1. Almost 98% cars before the year 2004 ( the year 2004 included) 2. Some Old Oil and electricity mixing, diesel powered car, Pick up, SUV, ORV, Mini Bus... 3. Few Special Cars Please confirm whether it is suitable for your car before placing an order. Material: plastic colour: black Package Contents: 1 x Automotive HUD Head-Up D