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 5960-00-279-3536
NSN 6110-00-218-0967
NSN 5975-00-225-5293
NSN 5996-00-487-0755
NSN 6220-01-385-7704
NSN 6130-01-206-1048
NSN 2925-01-264-5256
NSN 5930-00-361-8887
NSN 5996-00-397-4318
NSN 5835-00-958-6231
NSN 6645-00-258-8547
NSN 5998-01-360-0337