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 5920-01-359-1197
NSN 6240-01-262-4490
NSN 5990-01-609-4793
NSN 6135-01-074-8220
NSN 6610-01-248-4339
NSN 6135-01-056-4609
NSN 5930-00-916-3716
NSN 5998-01-098-0525
NSN 5920-00-060-3290
NSN 5950-01-658-2450
NSN 6320-00-225-7013
NSN 6135-00-134-6648