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 5999-01-181-5877
NSN 5835-01-031-7265
NSN 5905-00-687-2121
NSN 6135-00-284-1406
NSN 7035-01-545-8943
NSN 6650-00-009-9510
NSN 5855-01-179-8887
NSN 5905-00-450-0907
NSN 5935-01-218-7551
NSN 6650-01-467-8818
NSN 6105-01-212-3857
NSN 6150-01-025-0423