You'll find dozens of uses for this versatile and economical Conduct-Tite 6-12V electrical voltage continuity and current tester. It has been quality engineered to safely test powered-off connections on many types of vehicle electrical applications, including taillights, spark plugs, faulty distributors, generators, car batteries, headlights, turn signal indicators, power outlets and more. Slim and lightweight but sturdy, this handy tool has a 54 inch lead that offers excellent reach, an insulated alligator clip, and an extra-long steel probe. This must-have tester has been designed for regular use and durability, and features an integrated strain relief spring where the lead joins the handle to help prevent cord damage during tests, and a protective cover for the probe for safe storage. A required A23 battery is included.