The ELM327 Wifi OBD2 interface is an engine performance and diagnostics tool for automotive professionals and enthusiasts. Works on all OBD II Vehicles (1996+ in USA) and EOBD vehicles (Petrol cars from 2001+ and diesel cars from 2003/2004 in Europe). It is used to read & diagnose trouble codes, clear trouble codes and detect fuel pressure and so on. OBD-II Software forELM327 is a free program. After check, the ELM327 Wi-Fi interface will quickly send data to your iPhone, iPad, iPod Touch, or Windows computer from your vehicle in short time.