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 2925-00-915-1827
NSN 5945-01-660-7299
NSN 4140-00-439-4100
NSN 6645-01-583-5790
NSN 5950-00-947-0508
NSN 5915-00-732-9228
NSN 6645-00-838-6939
NSN 6610-01-400-3880
NSN 6620-00-811-7614
NSN 5998-01-178-3630
NSN 2925-01-150-2568
NSN 2925-01-602-1975