This handy digital tachometer measures the working speed of an engine (especially in a road vehicle) in revolutions per minute (RPM) via laser. The meter ranges from 2.5 - 99,999 RPMs. Perfect for use around the house or in the garage, and great for obtaining precise measurements on engines in classroom experiments. Displays to the tenth decimal.
A combination of three of our great discovery toys, all in one package!
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