Seller notes

Simulates Engine Operating Conditions: Simultaneously test two spark plugs, quickly identifying fault points.Dual-hole Simultaneous Testing: This innovative device allows you to test two spark plugs at the same time, enabling quick identification of fault points and ensuring optimal engine performance. HD Digitial Display: Intuitive digital screen display for more precise adiustment.Height-adjustable Dual Sockets: It not only supports standard spark plugs, but can also accommodate longer spark p...

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