The Fluke 930 is a cost-effective entry-level model that only supports laser non-contact RPM measurement via infrared reflection.

The Fluke 931 is a dual-purpose contact & non-contact tachometer. Besides laser optical measurement, it comes with contact probes to directly measure rotational speed and surface linear velocity by contacting rotating shafts. It is widely used for troubleshooting rotating equipment such as motors, fans, textile machinery, vehicles and HVAC compressors.

Both models feature a 6-digit backlit display, signal detection reminder, Max/Min/Average reading memory and auto power-off function. Compact and drop-resistant, covered by 1-year factory warranty.