This economical tachometer accurately measures rotational or surface speed as well as length. It comes with a large LCD display and has a built- in memory function that permits automatic storage of maximum, minimum, average values plus the last measurement displayed.
Specification
Contact Rotation Range & Accuracy
10 to 19,999 rpm; ±0.1%
Non-Contact Rotation Range & Accuracy
10 to 99,999 rpm; ±0.1%
Surface Speed Contact Range & Accuracy
1 to 9,999.9 m/min, 3 to 30,000 ft./min, 1 to 10,000 yd./min; ±0.1%