Portable Digital Tachometer Non-Contact Surface Speed Tach Meter Gauge ±0.02%+1
Resolution: 0.1 RPM at 2.5-999.9RPM / 1 RPM at 1000 - 99,999 RPM. 1x Marker Band. We specialize in photograghy,PC,Apple accessories. Data Hold Function. 3x Reflective tape. Powered: via 9V Battery - (Not included).