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 5945-01-105-1901
NSN 5960-01-512-0233
NSN 5965-01-189-4805
NSN 5975-01-210-6636
NSN 6130-01-014-5419
NSN 5960-01-184-8831
NSN 5895-00-967-9624
NSN 5960-00-594-0824
NSN 6130-00-225-7248
NSN 6135-01-056-4609
NSN 7035-01-106-3476
NSN 5985-01-262-1929