Seller notes

PRECISE MEASUREMENTS: Digital compression gauge with incredible 0.5 display resolution within 1% of precise pressure from 10-250 PSI, for quick and accurate checking of gasoline engine compression. Acrylic glass gauge cover with scratch-resistant coating and Protective rubber cover with excellent shock absorption. A built-in one-way valve with pressure maintaining function ensures that the pressure gauge obtains the maximum pressure at the spark plug during the compression process.Package: Inclu...

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