Key points:1. Display information: instantaneous fuel consumption, instantaneous fuel consumption of 100 km, acceleration of 100 km, water temperature, voltage, speed, mileage, travel time, clock2. alarm: engine failure, water temperature is too high alarm, voltage is too low alarm, shift reminder, speed alarm, fatigue driving reminder3. color LED screen is highlighted, non-destructive installation, plug and play4. start with a car, sleep with a car, effectively protect the car battery while retaining the manual switch machine, more conducive to control HUD5. the car fit model is compatible with OBD II or EUOBD (automatic diagnostic system ELM327)Features:1. The vehicle adaptability model is compatible with OBD II or EUOBD (Automated Vehicle Diagnostic System) car plug and play.2. More practical driving data: instantaneous fuel consumption, instantaneous fuel consumption of 100 km, acceleration of 100 km, water temperature, voltage, speed, mileage, travel time, clock, and detectable vehicle fault diagnosis code, eliminating the need for professional equipment to eliminate3. Display/shading integrated design, covering too many head-up lights, no glare at night driving4.18 kinds of screen one-button switching, you can manually set the driving data to be displayed, press the dial button vertically to replace the desired mode.5. Use the car to sleep and protect the car battery when starting up, while retaining the manual switch machine, it is more beneficial to control the HUD.6.