Vjoycar VH300 Car HUD 5.5' Head Up Display OBD II EUOBD Windshield Speedometer Projector Car electronics Overspeed Voltage AlarmProduct Features:1: Compatible with all cars & trucks with OBD2 or EUOBD interface 2: 5.5 inch Screen display 3: Updated Software , More Cars will be compatible4: Display Automatically: speed, RPM, clock, Coolant Temperature, Voltage, Oil Consumption, mileage measurement...5. Different Alarms: shift reminder, fatigued driver reminder, low voltage alarm, high temperature alarm, speed alarm, engine fault alarm, fault code elimination, distance unit: Kilometer/mile; Speed Unit: KM/H & MPH6: Auto power on and off 7: Automatic and manual brightness adjustment modeProduct Specification:Environment temperature - 35C--+80C Barometric press:86-106KPa Relative humidity:10%-95% Environment voice: =30dB(A) Work voltage:9V~18V Size of product:12.3*7.3*1.2(cm) Display Size: 5.5 inch Packing:1X Main Host1X OBD Cable (1.8M)1X Reflective film1X Anti-slide Pad1X User ManuelNotice Before Buying:1: the HUD VH300 is designed for 12V Gasoline Cars, it can't for 80% Diesel Cars. if the cars Gasoline & Electronic Mix, then the HUD only work when car is working in Gasoline, Maybe have not display when car work in Electronics.. thanks2: Please double check whether your car is OBD2 Standard. The cars which are produced After the year 2005 are normally OBD2 Standard(Such as produced in the year 2008.2009.2010....2020). Pls do not make order if your car is before year 2008, such as, Produced in 2004, 2003......3: The HUD maybe not compatible with Mitsubishi cars, and Electric cars (Because the electronics cars are not in OBD2 standard ) 4: For Mixed cars, such as Petrol & Eletronic Or Petrol & Rail Cars, the HUD can set to compatible with. but can not ensure 100%5: Some Special cars are incompatible with the devices also. After Sales (If the device can't work well after test):Anything in need about the device, please kindly