Function: 1. Automatic adaptation of car models and can apply for cars compatible with OBD II and EUOBD port (automatic car diagnostic system), plug and play 2. Multi-color TFT LCD smart display, the first scan will show the vehicle protocol 3. Add new features: Competitive Mode Acceleration, Brake Performance Test, Read Car Data Stream Information for Retirement 4. Rich content: speed, revolutions, water temperature, voltage, instantaneous fuel consumption, average fuel consumption, driving distance measurement, driving time, alarm low voltage, alarm high water temperature, alarm speeding, free switching between kilometers 5. Multi-function display mode or simple function display mode can be switched freely Specification: Description: This car OBD smart digital meter is used to display information on the car dashboard (e.g. speed, revolutions, fuel consumption, water temperature, voltage, etc. ) It can help you get driving information directly and quickly and keep the driver's eyes always on the road, making the driver safer while driving. Characteristics: Automatic adaptation of car models and can apply for cars compatible with OBD II and EUOBD port (automatic car diagnostic system), plug and play. Multi-color TFT LCD smart display, the first scan will show the vehicle protocol. Add new features: competitive mode acceleration, brake performance test, reading car data stream information for retirement. Rich content: speed, revolutions, water temperature, voltage, instantaneous fuel consumption, average fuel consumption, driving distance measurement, driving time, alarm low voltage, alarm high water temperature, alarm speeding, free switching between kilometers and miles. Multi-function display mode or simple function display mode can be switched freely. Technical data: Material: plastic, electronic components Kolor housing: Black Kolor of the display: colored Ambient temperature: -40 80 Relative humidity: 10% - 15% Atmospheric pressure: 86-106 kPa Alarm sound level: >30dB(A) Ambient noise: Operating voltage: 9 V16 V DC (12 V DC/400mA) Size: approx. 73 x 68 x 46 mm / 2,9 x 2,7 x 1,8 inches Package Weight: Approximately 177g List of packages: 1 x HUD Car Display 1 x OBD2 connecting line 1 x Anti-slip pad 1 x User Manual