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 5895-01-435-3320
NSN 5910-01-227-0853
NSN 6130-01-203-1955
NSN 5905-01-438-7802
NSN 5996-01-371-2958
NSN 5965-01-633-8849
NSN 5855-00-149-0766
NSN 5915-00-353-0853
NSN 5996-01-468-8252
NSN 6110-01-627-3326
NSN 5855-01-448-9794
NSN 5905-01-189-1868