Smartach - Diesel & Gasoline Engine Tachometer

A tachometer designed for use on any engine equipped with an alternator, and only requires a simple connection to the electrical system (e.g. battery, alternator, cigarette lighter connector) to measure engine RPM. Measures from 200 to 9,999 RPM 0.05% accuracy Large 4-1/2in. LCD display Comes with hard shell carrying case