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 2925-01-444-6676
NSN 5999-00-460-4989
NSN 5965-01-540-0743
NSN 5835-01-406-5943
NSN 5945-01-445-4669
NSN 6685-01-469-2718
NSN 5965-01-104-8559
NSN 5930-01-534-7458
NSN 4140-01-185-6214
NSN 6645-01-193-5214
NSN 6145-01-443-2147
NSN 5935-00-613-5533