What is a Tachometer?

A tachometer is a device for measuring the rotation speed of an object such as the engine shaft in a car. It basically indicates the revolutions per minute (RPM) performed by the object. It is also referred to as tach, revolution-counter, rev-counter, and RPM gauge.

Ford Ranger Tachometer Install - The Ranger Station

What Is A Tachometer And What Does It Do?

Tachometer - 8000 RPM - XR7 / Eliminator - New / Reman ~ 1969 Mercury Cougar ( 1969 Mercury Cougar ) at West Coast Classic Cougar :: The Definitive 1967 - 1973 Mercury Cougar Parts Source

2499 Gauge, Tachometer, 3-3/8, 8k RPM, In-Dash, Traditional Chrome

3-3/8 IN-DASH TACHOMETER, 0-8,000 RPM, TRADITIONAL CHROME

What is Tachometer and its uses?

The Tachometer

233904 Gauge, Tachometer, 5, 10k RPM, Pedestal w/ ext. Shift-Lite, Black, Auto Gage

5 PEDESTAL TACHOMETER, 0-10,000 RPM, SHIFT LIGHT, BLACK, AUTO GAGE

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Tachometer, USSR, Soviet, 3000 RPM I-16(?) Fighter – AeroAntique

How Does a Tachometer Work?, Tachometer Gauges