Ignition tester that tests spark plugs, spark plug wires, and coils without puncturing the wire. This tool helps you diagnose ignition issues without damaging any wires. Key features and benefits - Tests spark plugs, spark plug wires, and coils without puncturing the wire, reducing the risk of damage during diagnostics. - Pen clip design for easy carry and storage; simple application and use, making field and shop work convenient. - Ignition spark indicator with a nose tip that prevents lead puncturing; equipped with a high-intensity bulb and viewing window for clearer, concentrated flash signals. - Compatible with electronic ignition systems and circuit breakers; also functions as a reliable wire tester for convenient ignition system checks. Use scenarios - Home garage or professional shop: quickly verify ignition components when diagnosing misfires, no-start conditions, or weak ignition by checking spark at plugs, wires, and coils. - Field service or roadside diagnostics: carry in a pocket or tool bag for fast, non-destructive ignition testing on various vehicles. - Maintenance and troubleshooting of electronic ignition systems: use the tester to inspect circuit integrity and confirm proper ignition signaling in electronic setups. This product delivers straightforward, reliable ignition testing with a focus on safety, portability, and ease of use, while supporting both traditional and electronic ignition systems.