The Dorman 86598 Continuity Tester is a reliable tool designed for testing 6 and 12 volt circuits with power off. Made by Dorman, a trusted brand in automotive tools, this tester is manufactured in China and comes with a manufacturer part number of 86598. It is essential for diagnosing electrical problems in vehicles and ensuring proper functionality of circuits. Although this product does not come with a warranty, it is a valuable asset for automotive technicians and enthusiasts looking to troubleshoot and repair electrical systems.