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 5925-01-116-4439
NSN 2925-00-866-2757
NSN 5910-00-513-0851
NSN 5930-00-192-0381
NSN 5925-00-597-1558
NSN 6145-01-003-9741
NSN 5935-01-653-1632
NSN 6145-00-269-4271
NSN 6145-01-454-0225
NSN 5975-01-645-5407
NSN 6150-01-602-1508
NSN 5960-01-023-8037