12V Dual Plug Ignition Tester, Diagnostic Tool with Indicator Light and Adapter

Features:1.The tester is designed to test the performance and intensity of spark plugs.
2.With two test holes, two spark plugs can be tested simultaneously, which is very convenient.
3.With an indicator light, it can display the spark plug status more intuitively and for better understanding.
4.Easy to use, plug and play, no complicated steps, convenient and practical.
5.If you suspect that a spark plug is not working properly, you can compare and test it to make an accurate assessment.
Specifications:Material: ABS + Metal
Color: Black
Size: Approx. 140x80x40mm/5.5x3.1x1.6in (Due to manual measurement, there may be a 1-2mm deviation)
Product Function:
2. Connect to the power supply
3. Turn knob ④ clockwise. After powering on, indicator light ③ illuminates; the tester is now operating at 1000 RPM.

Package List:1 x Spark Plug Tester
1 x Power Cable
1 x Spare Adapter Plug