🔌 Power Up Your Diagnostics with Precision! 7-inch probe reaches tight spaces with ease. Built-in buzzer alerts you to circuit conditions. Internally protected against power surges and overloads. Compatible with 6-42V DC circuits across various vehicles. Effortlessly locate faults in your vehicle's electrical system. Includes storage bag DC 6~42V range Open/short circuit detection The allsun em415Pro Automotive Electrical Open&Short Finder is a versatile diagnostic tool designed for automotive professionals and DIY enthusiasts alike. It efficiently detects open circuits, short circuits, and current leaks across a wide voltage range of 6 to 42 volts DC. With its flexible probe and audio feedback, this tool simplifies the troubleshooting process, making it an essential addition to any toolkit.