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 6240-01-018-4895
NSN 6240-01-508-4146
NSN 5895-01-039-3382
NSN 5975-00-253-4198
NSN 6105-01-204-8985
NSN 6240-01-252-8850
NSN 6150-01-389-1304
NSN 4140-01-411-5908
NSN 5855-00-548-4742
NSN 6320-01-648-5538
NSN 6150-00-490-9346
NSN 5999-00-004-6442