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 5975-00-659-6531
NSN 6320-01-487-0336
NSN 6135-01-564-8390
NSN 6610-01-461-3850
NSN 6610-00-168-2200
NSN 5945-01-038-2702
NSN 5920-01-256-5830
NSN 6145-01-205-1097
NSN 5985-00-285-0798
NSN 4140-01-399-4352
NSN 5990-01-434-7913
NSN 5975-01-063-8236