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 6110-00-553-8816
NSN 5965-01-600-0444
NSN 5999-01-172-7625
NSN 5990-00-428-1895
NSN 5985-01-199-7238
NSN 5905-01-063-6827
NSN 6320-01-481-7322
NSN 5920-01-646-3890
NSN 5905-01-515-4060
NSN 6135-01-463-3898
NSN 6610-00-553-5103
NSN 6240-01-444-1673