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 5960-00-807-5272
NSN 5925-01-305-3088
NSN 6685-01-212-8090
NSN 2925-01-587-3956
NSN 5920-01-478-5617
NSN 6110-01-561-3135
NSN 6650-01-470-1315
NSN 6145-00-286-9588
NSN 6150-01-328-1606
NSN 4140-01-141-4473
NSN 6650-01-123-1091
NSN 5998-01-573-7669