火花塞測試儀/火花塞檢測儀 型號;HAD-1807

用于測試汽車點火系統是否正常作 .

1.With engine off, remove spark plug wire.
2.Attach black connector to spark plug.
3.Insert metal end of tester into spark plug wire.
4.Try to start the engine.
5.If ignition circuit is complete, bulb will flash