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 6110-01-451-4326
NSN 5960-01-283-3467
NSN 5905-01-631-4108
NSN 2925-01-208-6638
NSN 6650-00-916-7847
NSN 6320-00-149-7570
NSN 5930-01-137-8768
NSN 5895-01-508-4343
NSN 6610-00-245-6177
NSN 6650-01-555-8049
NSN 5945-00-156-7256
NSN 6650-01-495-3744