Simple and intuitive operation: connect the tester to the circuit and read results immediately on the digital display, making it easy for beginners to use. Multifunctional design: provides voltage and continuity measurements and can also be used as a noninvasive tool for electrical circuits. Effortless testing: touch the tester to the circuit and the device instantly displays the relevant parameters for quick analysis; supports auto bidirectional voltage detection. Broad compatibility: ideal for automotive repairs, electrical circuit diagnostics, and a range of other applications; versatile in use. Penstyle, practical design: compact form factor suitable for handheld, onsite testing and quick checks. Key features at a glance: digital display for clear readings, immediate results, simple operation, and reliable performance for common electrical testing tasks. Use scenarios: Automotive diagnostics: verify power and continuity in wiring harnesses, lights, and other vehicle circuits to locate faults quickly. Home and workshop electrical testing: check outlets, fuses, and wiring to confirm circuit integrity before maintenance. Onsite field checks: assess electrical circuits in trailers or work equipment for fast safety verification and troubleshooting.