1. Power supply voltage: 110/220V 2. Output power supply: DC12V 3. Simulated speed ??range: 200-9000RPM 4. Can simultaneously test four spark plugs and one standard spark plug for comparison, providing a more intuitive testing result. 5. Cover with the protective cover before testing to effectively prevent injury from sparks. 6. Digital screen display shows simulated engine speed for more precise control. 7. Simulates the working state of the spark plugs during engine operation; simulated speed is adjustable. 8. Dimensions: 200 x 118 x 118mm 9. Weight: 500g
