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 NOTES: OBD2 model can work for OBD2 gasoline vehicles produced after 2004 in USA, and OBD2 gasoline vehicles produced after 2008 in other countries. OBD2 model is not applicable for the following cars: Incompatibility:American models: Dodge, JEEP, IMSEOER, Chrysler and cars manufactured before 2004 in USA Incompatibility:French and Italian cars are not available: Fiat, Maserati, Lamborghini, DS, PEUGEOT , Citroen, Renault, Simca etc. Incompatibility:Some Japanese cars are not available: Suzuki, Mazda 6, INFINITI (QX50 Q50 Q501), Toyota AVANZA in 2013, Lexus (is250, ex250, ES300H), Honda (jazz, CRV) and cars manufactured before 2008. Incompatibility:Korean KIA and some cars of Hyundai (2013 Hyundai Sonata, 2017 KIA Soul PS, etc.) Incompatibility:Hybrid and diesel vehicles, pickups, RVs, cars with modified automotive computers, Volvo, Switzerland, Chrysler Group, all brand models under Fiat Group. Incompatibility:German cars before 2004 For the above cars can not use OBD2 models , please use GPS models. Package Included: 1x OBD Smart Digital Meter HUD P10 Do drop