Simple and intuitive - User friendly interface designed for ease of use by anyone, including users with limited technical knowledge. - Supports ignition cable testing and automotive compression testing. Portable design - Compact and lightweight for easy carrying and convenient field use. - Suitable for testing car spark plugs, spark testers for cars, and circuit testers for cars. Versatile functionality - Can test different circuits such as car batteries and alternators, expanding overall usefulness. - Includes an in-line spark plug tester and a fuse tester for practical electrical system checks. Precision and performance - Precisely measures the voltage of car spark plugs to help maintain optimal engine performance. - Also functions as a fast coil tester and electric tester for quick diagnostics. Use scenarios - Routine ignition system check at home or in a shop: verify spark plug voltage and coil health during regular maintenance. - Field testing during component replacement: quickly assess spark plugs, ignition cables, and related circuits on the go. - Electrical system diagnosis: assess battery and alternator performance, check fuse status, and evaluate associated wiring.