1. Features: 2. Dual Hole Testing & Time Saving: The ANCEL Car Spark Plug Tester is able to perform dual-hole simultaneous testing and analog engine working, which is efficient and time-saving. 3. 0 to 6000rpm Operating Frequency: The ANCEL Car Spark Plug Tester is designed with adjustable working frequency, with a range that can reach 0 to 6000rpm. It can be adjusted as required. 4. Widely Application: Suitable for 12V gasoline vehicle spark plugs, with an input voltage of 100V-240V. 5. Easy Operation Plug And Play: Easy to operate, plug and play. Equipped with an indicator light, the status of the spark plug can be displayed more intuitively. 6. Specification: 7. Mold: spark plug tester 8. Input: 100~240V AC 9. Length of external: 1m 10. Host size: 145*90*114mm 11. Power supply: Power Adapter 12. Power Adapter: Output 12V 1A DC 13. Suitable for 12V driven gasoline car spark plugs 14. Usage: Test car spark plug performance and ignition intensity 15. Package included: 16. 1* ANCEL Car Spark Plug Tester main unit 17. 1* Packing box 18. 1* User manual 19. 1* EU Plug Adapter Connector