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High Precision Contact Tachometer

Extech 461891

Model: 461891 Go to Product Support
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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.

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General Specifications
Rotation Speed (Contact)
0.5 to 20,000rpm
Rotation Speed (Contact) Basic Accuracy
±0.05% of reading
Rotation Speed (Contact) Max Resolution
Surface Speed (Contact)
0.2 to 6560ft/min, 0.05 to 1999.9m/min
Surface Speed (Contact) Basic Accuracy
±0.05% of reading
Additional Details
6.7 × 2.8 × 1.5" (170 × 27 × 37mm)
4 × AA (1.5V) batteries
2 years
9.2oz (260g)
Related Documents
Export Restrictions

Export Restrictions

The information contained in this page pertains to products that may be subject to the International Traffic in Arms Regulations (ITAR) (22 C.F.R. Sections 120-130) or the Export Administration Regulations (EAR) (15 C.F.R. Sections 730-774) depending upon specifications for the final product; jurisdiction and classification will be provided upon request.

Extech 461891 - Model: 461891

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