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 5990-01-206-3606
NSN 5998-01-464-7775
NSN 4140-01-412-1566
NSN 6620-00-232-2048
NSN 5935-01-373-9804
NSN 5895-01-469-1398
NSN 5999-01-338-0750
NSN 5895-01-420-5459
NSN 6620-00-838-6954
NSN 5960-01-649-1341
NSN 7035-01-651-5361
NSN 2925-01-359-4027