Simplify vehicle diagnostics with the Large Size Heavy Duty 3-48-Volt Digital LCD Circuit Tester. Designed for versatility, this tester covers a wide voltage range, making it ideal for checking headlights, taillights, fuses, batteries, and other 3-48-Volt DC circuits. Its high-accuracy backlit LCD digital display ensures clear voltage readings, even in dark spaces, while minimizing the risk of damage to sensitive circuits. Built for durability, it features a tough acetate fiber body and a sharp stainless steel probe for hard-to-reach areas. The extended 140 in. PU spring wire adds flexibility and convenience, making this tester a must-have for professionals and DIY enthusiasts alike. Experience reliability and precision in every diagnostic task with this heavy-duty circuit tester.