- Indicator Light : The tester features a bright indicator light to easily assess circuit status. A green light signals positive polarity, while a red light denotes negative polarity, allowing for quick identification of circuit conditions. - Sharp and Durable Probes : Equipped with a large alligator clip and two sturdy steel probes, this tester is designed for efficiency. Its pointed design enables access to tight spaces and ensures reliable wire penetration for accurate testing. - Versatile Functionality : Effectively detect various automotive circuits, including idle circuits, ignition circuits, automatic transmission circuits, air conditioning circuits, and grinding circuits, making it an essential tool for automotive diagnostics. - Wide Compatibility : The circuit tester is compatible with a range of vehicles such as cars, trucks, boats, RVs, trailers, and motorcycles, supporting low voltage systems from 6V to 24V. This versatility makes it suitable for both personal and professional use. - Practical Applications : Ideal for automotive enthusiasts and professionals alike, this tool can be used to troubleshoot wiring issues in a car's ignition system, inspect the operation of air conditioning circuits, or verify connections in an RV. Its ability to pinpoint circuit functionality ensures efficient repairs and maintenance. Designed for reliability and ease of use, this circuit tester is a must-have for anyone working with automotive electrical systems.