Best Small Engine Tachometers 2022 The term “tachometer” came from two Greek words, namely: tachos which means speed; and metron which means “measure.” Hence, etymologically, the word “tachometer” means “measure of speed” or “speed measurement.” Well, the etymological meaning of tachometer tells something about what it does, for a tachometer basically measures the rotational speed of a disk or shaft. […]

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