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 5910-01-428-2487
NSN 5960-01-512-0233
NSN 2925-01-175-1217
NSN 5835-01-360-2657
NSN 6220-01-352-1643
NSN 5945-00-285-2808
NSN 5990-01-116-2181
NSN 4140-01-050-8096
NSN 5895-01-436-8139
NSN 6110-01-510-7479
NSN 5960-01-354-0762
NSN 5960-01-588-1441