An instrument used to count the frequency of recurrent electronic events and display the count on the panel of the instrument in numeric form. May also include facilities for a readout printed on tape. May include facilities for a very accurate output which can be used as a secondary transfer standard. It can be used to measure frequency, period, time interval, phase angle, frequency ratio, and for multiple period averaging. See also counter, electronic, digital and indicator, digital display.
Classification: Parts and accessories of articles of schedule b subheading 9030.39
NSN 5930-00-972-4381
NSN 2925-01-519-1707
NSN 6610-00-068-7143
NSN 5985-01-578-8474
NSN 5855-01-476-0941
NSN 6145-00-243-5851
NSN 6110-01-189-6947
NSN 5985-01-647-9549
NSN 5855-01-121-8862
NSN 5905-00-353-1659
NSN 5855-01-191-3404
NSN 5915-01-461-9190