LED DISPLAY FOR EASY READINGS The automotive test pen provides a clear LED display that shows voltage measurements with a 1V resolution, enabling quick and accurate diagnostics in any lighting condition. QUICK AND EFFICIENT TESTING Designed for fast testing of car battery voltages and diagnosing issues across systems from 3V to 48V. It also functions as an alternator tester for a wide range of vehicles. STURDY AND SAFE CONSTRUCTION Made from robust ABS material with an ergonomic handle to ensure comfortable and safe use during extended electrical testing. USE SCENARIOS Before a long trip or daily commute, quickly verify battery health by checking voltage with the LED display. In a workshop or fleet maintenance setting, test multiple vehicles’ charging systems by confirming battery voltage and alternator output. Troubleshoot electrical issues across 12V and 24V systems in cars, vans, and light trucks, using the same tool for versatile diagnostics.