- Inline spark plug tester: simple inline design provides high performance for detecting car spark plugs, delivering fast, clear results. - Spark plug tester: unique design with effective function for detecting spark plug condition and ignition performance. - Spark plug detector tester: lightweight, reliable, portable and practical tool for in-car diagnostics. - Motor ignition: simple in design yet practical to use, offering a straightforward user experience. Benefits - Quickly verifies spark plug condition and ignition system function to aid diagnosis. - Lightweight and portable for use in cars, in workshops, or on-site maintenance. - Simple operation with minimal setup, reducing diagnostic time. - Compact form factor supports easy storage and transport. Use scenarios - Quick spark plug check during routine maintenance in a workshop. - In-car diagnostic test when investigating ignition issues or performance problems. - Portable testing during on-site repair or roadside checks by a mobile technician.