Features - Heavy & robust casing for rough service use - Connects to PC via RS232 - Working for ISO9141/KWP2000 protocol over ELM323 Interpreter MCU - Cable is based on certified ISO9141 Bus Transceivers and RS232 level shifters - Bi-colour led for each K-line which shows the current logic status - Powered from car battery over OBD2 connector . Functions Software for ELM32X-based interfaces: Free software: Scantool.net GM Mode 22 Scan Tool by Terry OBD Gauge for PalmOS and Pocket PC by Dana Peters OBD Logger by Jonathan Senkerik OBD-II ScanMaster by Wladimir Gurskij (ScanMaster 3.52 - local copy) obd2crazy.com OBD2 Scantool by Ivan Andrewjeski OBDII for ELM322 by David Huffman pyOBD by Donour Sizemore for MacOSX and Linux RDDTC by Pete Calinski Real Scan by Brent Harris ScanTest for Pocket PC by Ivan Ganev aka a-ser wOBD by WDT