ScanMaster-ELM Windows Computor App for OBD2 Diagnostic AdapterScanMaster-ELM is a old software for obd code reader which is with ELM327 chip or compatiable version, it is suitable for computor operation system like Windows 2000, XP, 2003, Vista, Windows7, 8, 8.1 (32 and 64bit), and it supports OBD