General description Electrical Test Pen 2.5-32V is a digital pencil designed for automatic diagnostics. This tool is essential for automotive circuit repair, providing fast and accurate readings to help technicians identify vehicle issues efficiently. Technical specifications Voltage range: 2.5-32V Display: High-precision digital LCD Usage This multifunctional test pen supports a variety of tests, including: Short circuit and open circuit tests Ignition system tests Engine performance tests Load tests Battery tests Polarity detection tests Other information The tool is designed to quickly and accurately detect various line faults without damaging the rubber coating.