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 5935-01-328-0181
NSN 5915-01-158-2420
NSN 5975-01-205-1843
NSN 5905-00-042-7818
NSN 6610-01-527-1793
NSN 5915-01-251-8663
NSN 5996-01-016-2046
NSN 5925-00-399-1120
NSN 6145-01-547-4859
NSN 5990-00-605-0391
NSN 6145-01-218-6029
NSN 5990-01-345-1468