The Extech 461891 high precision contact tachometer quickly and accurately measures rotation rate and surface speed up to 20,000 rpm. It is highly precise in measuring a wide range of rotational speeds and makes use of included accessory wheels for a variety of linear speed measurements. Scroll down to see more Extech 461891 high precision contact tachometer features and specifications.Read More...
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The Extech 461891 Contact Tachometer is available with standard factory calibration or with NIST Calibration Certification (adds 5 days to product lead time).
The tachometer includes cone tip, flat tip, and wheel attachments for measuring surface speeds. It is capable of measuring in units of ft/min or m/min. Operation is simple and the unit's built-in memory recalls the most recent minimum and maximum values.
|Range||0.5 - 19,999 rpm
0.2 - 6,560 ft/min
0.05 - 1999.9 m/min
|Accuracy||±0.05% + 1d|
|Sampling time||1 sec > 6 rpm|
|Resolution||0.1 rpm (0.5 to 999.9 rpm)
1 rpm > 1000 rpm
|Dimensions||6.7" x 2.8" x 1.5"
170 mm x 27 mm x 37 mm