The Power Probe IV 4 Automotive Electrical Tester #PP401AS is a diagnostic tool designed for automotive use. It features a digital display for easy reading, along with functionality for continuity testing, voltmeter readings, and relay & component testing. This innovative tool comes with a carrying case for convenient storage and portability, as well as clamps and probes for easy and precise testing. Made in Taiwan, this 12-volt tester is an essential tool for any automotive professional looking to accurately diagnose and repair electrical systems.