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 6240-01-420-6495
NSN 6620-01-224-4985
NSN 5990-01-430-4651
NSN 5998-01-562-3505
NSN 6105-01-446-6527
NSN 5910-01-548-1503
NSN 6650-00-834-9062
NSN 5965-00-342-5126
NSN 5965-01-236-6826
NSN 5835-00-905-7165
NSN 5910-01-264-8105
NSN 5920-00-246-5992