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461891 High Precision Contact Tachometer

Brand: Extech

The 461891 is a contact Tachometer. 

Surface wheels measure contact surface speeds (10 to 9,999 rpm) of rotating objects. 

The memory button holds last reading and recalls min/max readings display. 

Complete with wheels for linear surface speed (0.2 to 6560 feet/minute; 0.05 to 1999.9 meters/minute) or RPM measurements. 

Comes with cone tip, flat tip and spare wheel for surface speed measurements, four AA batteries, carrying case, and user manual.
Features
  • 0.05% basic accuracy.
  • Make contact measurements of rotating objects.
  • Measure linear surface speeds in ft/min or m/min using three accessory wheels provided.
  • Recalls Last/MAX/MIN values.

Specifications

Brand

Basic Accuracy

  • ± 0.05 % of Reading

Dimensions

  • 6.7 x 2.8 x 1.5" (170 x 27 x 37 mm)

ft/min

  • 0.2 to 6560

m/min

  • 0.05 to 1999.9

Maximum RPM Resolution

  • 0.1 rpm

RPM

  • 0.5 to 20,000

Weight

  • 9.2 oz. (260 g)
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