Digital Tachometer For 2/4 Stroke Engines High Precision RPM Meter

RPM Precision: ± 10 RPM. RPM Range: 0 - 25,000 RPM. RPM Alarm Setting Range: 1,000 - 25,000 RPM. Display: LCD screen with a green backlight for clear visibility. Hour Precision: ± 0.1 hour. RPM Precision ± 10RPM.

eBay