Portable electrical circuit tester for automotive electrical systems. Small size and lightweight, easy to carry in a pocket or tool bag. Long, elastic spring cable for easy operation in tight engine bays and awkward positions. Flexible reach keeps testing simple and efficient. Digital display voltage meter with a clear readout for quick and accurate detection of voltage. Convenient for fast diagnostics in the field or shop. Smooth surface, burr-free workmanship for comfortable handling and durable use. Built to withstand regular testing in automotive environments. Broad compatibility with automotive electrical systems. A practical car electrical tester for routine checks, troubleshooting, and diagnostics. Use scenarios: - Roadside or in-shop voltage check of car battery, charging system, and electrical circuits. - Troubleshooting symptoms such as dim lights, non-start conditions, or suspected wiring faults. - Quick voltage verification during maintenance or repair work in a workshop.