Features: Model: P10 - OBD Speedometer With Car Diagnostic Tool, Not Compatible For Some Cars. Plug and play. Real 2.6" TFT LCD multi color smart display. The first scan will show the vehicle protocol. Add new functions: accelerating competitive mode, brake performance test, can read the entire car data stream information. Rich Contents: vehicle speed, engine RPM, water temperature, voltage, instantaneous fuel consumption, average fuel consumption, driving distance measurement, driving time, low voltage alarm, high water temperature alarm, over speed alarm, engine fault code alarm, eliminate the fault code, freely switch between kilometers & miles. Multi function display mode or simple function display mode can be switched freely to show above content. Supporting Protocol: ISO15765 CAN Bus, ISO14230 KWP2000, ISO 9141-2 Specifications: Environment temperature: -40c- + 80c atmospheric preure 86-106KPa Relative Humidity: 10% -95% environmental noise <= 60dB (A) Alarm sound level: =30dB (A) Working voltage: 9V ~ 16Vdc (12Vdc / 400mA) Size: As the Pictures Package Included: 1 x OBD Smart Digital Meter HUD P10 Features: 100% brand new and high quality Multifunction: speed,water temperature,voltage monitoring and fatigue driving warning. Smart size, big digital display, Easy to install, put any where. ONLYavailable for cars with OBD2 and EOBD agreement(European:manufactured after 2003, Other region: after 2007) Dont support JOBD and OBDI,if your car is these agreement(manufactured before 2008),please replace with other cars that comply with OBD2 interface. Specificaitons Product Name: M3 HUD Display Speed Display Unit: MPH,KMH (Exchangable) Display Data: Speed, Water Temperature, Voltage. Alarm for : Over-speed,Engine erro,Water temperature,Fatigue dreving. Connection: OBD Port Lightn Sensor: Yes Package Included: 1 x HUD Headup 1 x OBD Cable 1 x English Manual 1 x Reflective Film 1 xSticker 1. WORLDWIDE