Spark plug detector tester - This engine ignition tester accurately determines the ignition status of spark plugs. It also serves as a Spark Plug Coil Detector, helping you verify coil performance quickly and reliably. Straight boot tester light - With precise measurement capabilities, this tester accurately detects the ignition status of your vehicle's spark plugs. It helps you quickly identify issues and minimize downtime. Spark car plug tester - In addition to testing spark plugs, it can be used to test other automotive parts. This makes it a versatile plug tester for maintenance and diagnostics. Automotive spark plug tester - Built with good workmanship and a reasonable structure, it is professional and practical. It provides convenient use as a spark tester tool. Use scenarios - Routine maintenance: quickly check ignition status during scheduled service to confirm spark plugs and coils are functioning properly. - Troubleshooting: diagnose ignition misfires by testing spark plugs and related components on the vehicle. - Workshop versatility: use as a general testing tool to inspect other automotive parts in a garage or repair shop.