User-friendly design - An easy to use interface that makes testing accessible to users without technical expertise. Functions include plug tester and car circuit tester. Durable and reliable - Built with robust materials to ensure long-lasting performance and resistance to damage. Includes a spark tester for ignition coil testing and an electric test pen. Versatile applications - Suitable for testing a range of circuits, including car batteries and generators. Also useful for ECM motor testing, HVAC systems, and car spark plug testing. Accurate voltage testing - Provides precise voltage measurements for car spark plugs to support optimal engine performance. Serves as a coil tester tool and electric tester. Use scenarios - Automotive maintenance: test ignition system components such as spark plugs and ignition coils, along with the battery and related circuits, to diagnose performance issues. - Power and electrical system checks: evaluate car battery and generator circuits to ensure charging and power delivery are functioning correctly. - ECM motor and HVAC diagnostics: verify electrical supply and performance for ECM motors and HVAC control circuits to identify faults.