The ONYX Tester is the easiest way to perform complete and accurate testing of any 12/24 V car alternators and starters. This advanced computer technology test bench use a complete and scalable database to make the use simple and intuitive. The Onyx Tester is updated by USB / Internet, in order to include the last recent alternator technologies and references. For more information, visit the site : www.testbench.tma.fr