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 6105-01-184-5602
NSN 5965-01-193-0420
NSN 5950-01-445-5586
NSN 6145-00-625-0714
NSN 5935-00-959-6481
NSN 7035-01-106-3476
NSN 4140-01-303-5103
NSN 5960-00-379-4452
NSN 5905-00-929-5136
NSN 6645-01-298-8837
NSN 6130-01-580-7818
NSN 5920-00-491-5192