The Lisle Master Relay & Fuse Circuit Test Kit - 69300 is the perfect tool for any automotive technician. This kit contains all the necessary tools and equipment to accurately test and troubleshoot relays and fuses. The kit includes a circuit tester, test leads, a relay socket, and a variety of adapters for testing a wide range of circuits. The circuit tester features an easy-to-read digital display that provides accurate readings and a built-in flashlight for illuminating the work area. The relay socket is designed to fit a variety of relays, and the included adapters allow for testing of both blade and pin-style relays. The kit also includes a comprehensive instruction manual to help you get the most out of your testing. With the Lisle Master Relay & Fuse Circuit Test Kit - 69300, you can quickly and accurately diagnose and repair electrical circuits in your vehicle.