1. Easy to Use: This ignition coil tester allows quick and reliable checking of spark plug condition. Designed for both professionals and DIY enthusiasts, it simplifies diagnostics and saves time during vehicle maintenance. 2. Effortless Testing: Simply hold the tester against the ignition coil to immediately test spark plugs. This convenient tool enables fast troubleshooting without complicated setup or disassembly, making it ideal for on-the-spot inspections. 3. High Precision Measurement: Accurately detects voltage and current in the spark plug circuit to ensure proper and efficient operation. This precision helps identify faulty spark plugs, preventing engine misfires and performance issues. 4. Accurate Signal Detection: Measures voltage and amperage precisely for spark plugs, confirming correct ignition function. Compatible with various car ignition systems, it supports thorough engine diagnostics and maintenance. Applications: - Quickly diagnose spark plug health during routine vehicle servicing. - Identify ignition coil or spark plug issues to prevent engine faults. - Use in automotive repair shops or private garages for reliable testing. This spark plug tester is a practical, high-performance tool that enhances ignition system troubleshooting with accurate measurements and straightforward operation.