461750: PocketTach® Contact Tachometer


  • Large easy to read LCD display
  • Hold button freezes displayed readings
  • Ergonomically designed and pocket size housing with protective finger guard
  • Surface wheels enable tachometer to measure linear surface speeds in ft/min, m/min, and yd/min
  • English Datasheet
  • Spanish Datasheet

Available on back-order

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Contact rpm and surface speed measurements up to 20,000rpm

A tachometer is a device that measures the angular speed of a rotating shaft in terms of revolutions per minute (RPM). The Extech 461750 Tachometer features surface wheels that measure contact surface speeds of rotating (10 to 9,999 RPM) and moving (3 to 6,560 ft./minute; 1 to 1999. 9 m/min) objects. Complete with 9V battery and surface wheels.

Specifications Range
Display Counts 99,999 count LCD
Range rpm 10 to 20,000rpm
ft/min 3 to 6560ft/min
m/min 1 to 1999.9m/min
yd/min 1 to 5,000yd/min
Basic accuracy ±(0.1%rdg 2d)
Sampling Time 1sec>60rpm, >1sec>10 to 60rpm
Max rpm Resolution 0.001
ft/min Resolution 0.0001
Dimensions 5.87 x 1.97 x 1.3″
(149 x 50 x 33mm)
Weight 5oz (142g)