revolution counter

noun

1. a device for counting or recording the number of revolutions made by a rotating shaft, as of a motor or engine.

Example Sentences

A final twist, a glance at the revolution counter, and he was done.

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I tried to steal a quick glance at my revolution counter.

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In the machines they were accustomed to there was nothing but a revolution counter, and sometimes, though not always, a compass.

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The watch, anemometer and revolution counter were all automatically started and stopped simultaneously.

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I had nothing to do other than to give occasional attention to the revolution counter, altimetre, and speed-dial.

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