Gasoline Tiny-Tach Standard Tachometer & Hour Meter

DTI Gasoline Tiny-Tach Standard Tachometer and HourMeter TT2B. The Standard Tiny-Tach is a self-contained Tachometer and Hour meter. Perfect for most 1 or 2 cylinder 2 and 4 stroke small engines with 1 spark per revolution. Also works on engine with electronic ignition. Features RPM display up to 19,999 with 1/2 second update time; All in one Hour Meter and Tachometer; Easy to install, just wrap the red wire around your spark plug wire; Standard cable length is 6 feet; Will not work on fuel injection engines; Display RPM when engine is running, then shows total hours when engine is not running; Hour Meter records total engine run time and is not resettable; Water Resistant not water proof; Lithium battery life 5+ years, not replaceable.