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 5925-01-587-2907
NSN 6610-01-571-4979
NSN 5835-01-193-6192
NSN 5975-00-013-9291
NSN 5950-01-513-3102
NSN 5925-01-204-1370
NSN 4140-00-528-2921
NSN 6650-01-314-5073
NSN 6105-00-394-6803
NSN 6610-00-202-5481
NSN 5965-01-147-5289
NSN 5960-01-335-1622