The Auto-Tune Timing Light Inductive 4115 from Chicago Automotive is a vintage diagnostic service tool used in automotive testing and maintenance. Made in the United States, this timing light is designed specifically for use with inductive ignition systems. While it comes with leads as accessories, this unit is sold as is with no warranty provided. The Auto-Tune brand is known for quality automotive tools, making this timing light a reliable choice for troubleshooting and timing adjustments in vehicles.