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Description： * Non-contact engine RPM measuring.
* Available for the automobile engine, motorcycle engine, generator engine. 4-cycle & 2-cycle
selected switches, available for the automobile engine, motorcycle engine, generator engine...
* Secondary tach. measuring method, no matter what cylinder is.
* 10 to 40,000 RPM x 1 RPM, 0.05% accuracy.
* Memory (Max., Min., Last value).
* High precision gasoline engine RPM measurement, measurement is just to clamp the Inductive pick
up sensor (IP-07, included) to the high tension wire.