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.

• 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

Specifications                                           461750
Display Counts                                          99,999 count LCD 99,999 count LCD
Range rpm                                                 10 to 99,999rpm 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)
Max rpm Resolution                                0.001 0.001
ft/min Resolution                                     0.0001
Dimensions                                                4.88 x 1.97 x 1.3" 5.87 x 1.97 x 1.3"
                                                                     (149 x 50 x 33mm)
Weight                                                       4oz (114g) 5oz (142g)

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