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 6610-01-112-0447
NSN 5975-01-600-5724
NSN 5985-01-461-8575
NSN 5915-00-078-9574
NSN 5920-01-474-5150
NSN 5905-01-284-3639
NSN 6110-00-976-3361
NSN 5999-00-055-1042
NSN 5945-00-490-1746
NSN 5920-01-444-3983
NSN 6150-01-163-8793
NSN 6105-01-589-0158