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 6320-01-382-9676
NSN 6105-01-267-6840
NSN 5835-01-502-9228
NSN 5965-01-052-3765
NSN 6110-00-081-0927
NSN 5835-00-071-5739
NSN 5835-01-493-1826
NSN 4140-01-028-2004
NSN 2925-01-394-9658
NSN 5915-00-025-1763
NSN 5905-00-820-1832
NSN 5998-00-752-1162