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 2925-01-537-2069
NSN 5945-01-495-5748
NSN 5965-00-841-9195
NSN 5835-00-834-1286
NSN 6650-01-277-8273
NSN 5960-01-602-6009
NSN 5835-00-949-3018
NSN 5965-00-578-8931
NSN 5910-00-203-0566
NSN 6105-01-106-4157
NSN 5965-01-506-0861
NSN 6320-00-270-8222