Contact Tachometer for Linear and Rotational RPM Readings

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The BAFX Products Contact Tacometer is a great tool for accomplishing many tasks where the reading rotational speed at a high accuracy is required. Our small, handheld and highly portable tool comes with 4 attachments allowing you versatility in reading the speeds of many different types of engines, motors, shafts or other moving objects.

Using the wheel attachment allows you to also read linear speeds of moving objects such as conveyor belts. With the 1/8" slot in the linear speed wheel you can also easily read the linear speed of wires or ropes as well.

Our tacometer comes with the following attachments allowing for a wide variety of readings:

  • 1x 1/2" RPM adapter
  • 1x 1/4" RPM adapter
  • 1x 1/4" Shaft adapter
  • 1x Linear speed wheel

These attachments allow for the readings and testing of many different objects, gears and machines for many different industries from automotive, heating and cooling to manufacturing and retail. Complete with MAX/MIN/LAST/AVERAGE reading functions allowing you to see the maximum, minimum, last and average speeds of your reading session. Our contact tachometer operates on 2x AAA batteries which come included with your purchase.


  • Measuring Range: 0.5~19,999
  • Resolution: 0.1 (0.5~999.9) & 1.0 (1,000~19,999)
  • Precision: +/- 0.5%+1
  • Sample Interval: 1x/0.8s (Over 60RPM)
  • Power 2x 1.5 AAA Batteries