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 5945-01-532-2614
NSN 5930-00-209-1076
NSN 2925-00-777-2902
NSN 6645-01-394-5149
NSN 5965-00-513-1352
NSN 5945-01-634-0588
NSN 6645-00-466-0685
NSN 6685-01-394-8039
NSN 5935-01-162-0520
NSN 5915-00-478-7834
NSN 6645-01-340-0892
NSN 5945-00-914-8789