DT-2234C+ Electronic Tachometer for Fast and Safe Non-contact RPM Monitoring
Resolution: 0.1 RPM (2.5~ for 999.9 RPM), 1 RPM (1000 RPM and above). Large Screen Display: Equipped with a clear and easy-to-read screen for convenient and quick monitoring. Testing Range: 2.5 RPM ~ 99, for 999 RPM (revolutions per minute).