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 5855-01-384-4914
NSN 5925-01-118-7438
NSN 6220-01-149-8566
NSN 2925-01-288-0971
NSN 5996-00-740-8315
NSN 5920-01-238-7623
NSN 6220-01-510-4948
NSN 5999-00-098-8903
NSN 5855-00-189-6066
NSN 5985-00-836-0641
NSN 5990-00-226-7894
NSN 5945-01-428-9409