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 5985-00-420-9491
NSN 5950-00-716-1815
NSN 5990-01-503-9804
NSN 6685-01-605-8931
NSN 5835-01-599-1876
NSN 6620-01-280-9478
NSN 5910-00-857-4340
NSN 5945-00-456-1758
NSN 2925-00-513-6644
NSN 4140-01-252-9502
NSN 7035-01-604-9657
NSN 5985-00-359-6925