General description This Pro Automotive Short Circuit and Open Circuit Finder is an essential tool for diagnosing electrical issues in vehicles. It effectively detects and alerts you when a circuit is open, allowing you to quickly locate shorts, open connections, broken wires, and power leaks. The device features a flexible 7-inch probe that can reach wires in crowded areas, making it ideal for various applications in cars, trucks, tractors, boats, and recreational vehicles. Technical specifications Operating Voltage: 6 to 42 volts DC Receiver Dimensions: 15.25" H x 1.5" W x 0.91" D (approx.) Transmitter Dimensions: 2.5" H x 2.2" W x 0.83" D (approx.) Probe Length: 7" flexible probe Test Lead Wire Length: approx. 24" Power Supply: 2 x 9V battery (6F22) Installation Install a 9V 6F22 battery in both the receiver and transmitter before use. Usage Use the device to check for short circuits and open circuits. Trace wires and cables without damaging insulation. Listen for changes in tone