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 6240-00-329-9573
NSN 5998-01-340-0877
NSN 5910-01-162-7265
NSN 5950-01-186-9403
NSN 6645-01-633-1852
NSN 5935-01-056-6606
NSN 6320-01-631-7828
NSN 5999-01-425-3971
NSN 5996-01-007-2147
NSN 5960-01-526-3843
NSN 5960-01-375-1905
NSN 6610-00-823-9159