- Wide Circuit Testing: This Circuit Tester is designed for 6V, 12V, and 24V DC systems, making it perfect for diagnosing circuits, fuses, switches, and wiring in automobiles, trailers, boats, motorcycles, and other low-voltage applications. - Premium Build Quality: The tester features a durable AS plastic handle and a hardened, tempered carbon steel probe with chrome plating. The sharp probe easily penetrates wire insulation for efficient circuit testing. - Versatile Functionality: Use this tool to detect power, ground, and locate shorts and breaks in wiring. It allows for quick checks of automotive headlights, taillights, turn signals, faulty sockets, connections, fuses, and broken wires. The handle glows to indicate a complete circuit connection, and the 3-watt bulb is easily replaceable. - Simple Operation Method: To use, connect the flying lead to a ground reference and touch the probe tip to various circuit points to check for voltage presence. An indicator light confirms electrical connectivity when the probe is active. - Practical Applications: - Check automotive lighting systems to ensure proper functionality before a road trip. - Diagnose electrical issues in boats or trailers before embarking on an adventure. - Troubleshoot motorcycle wiring to maintain safety and performance. This Circuit Tester combines essential features and high-quality materials, making it an indispensable tool for anyone working with low-voltage electrical systems.