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 6145-01-621-2504
NSN 5935-01-551-3189
NSN 5998-01-564-8823
NSN 5985-00-436-1808
NSN 6110-00-441-9214
NSN 5960-00-971-7093
NSN 4140-00-187-6086
NSN 6105-01-161-5024
NSN 5945-01-391-7485
NSN 5910-00-772-6754
NSN 2925-01-262-1418
NSN 5965-01-597-6295