BATTERY TESTER BST580D is developed as a comprehensive battery tester and OBD scanner, especially for the DIY users and the servicemen of small service workshop . It supports battery tests (including battery test/start system test/charging test/voltage test/ripple detection) and OBD diagnostics (including read/clear DTCs and read data stream) . With built-in help menus and code definitions, diagnosing and repairing that dreaded Check Engine Light is now easier than ever. It provides the ability to print diagnostic records through connection to PC. Moreover, it can be connected to PC through the USB cable for upgrade to keep updated with the latest software version BST580D