The Automotive Short and Open Finder Circuit Tester DC 6-42V is a practical tool for diagnosing electrical issues in vehicles such as motorcycles, ATVs, passenger vehicles, and heavy-duty/commercial vehicles. With a quick and easy diagnostic feature, this circuit tester is designed to check for short circuits and locate open circuits with ease. The compact design and carrying case make it convenient to carry and use on the go. Power supplied by 2x 9V batteries (not included), this tester is suitable for wire tracing and provides accurate results for automotive maintenance and troubleshooting. Made of durable plastic and in a sleek black or yellow color, this circuit tester is a reliable companion for automotive professionals and enthusiasts alike.