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 5930-01-643-5669
NSN 5998-01-059-6693
NSN 6320-01-521-1764
NSN 6130-00-883-4797
NSN 5945-01-612-7148
NSN 6610-00-100-1195
NSN 4140-01-391-6462
NSN 5920-00-366-0111
NSN 5935-00-283-8322
NSN 6135-00-377-9165
NSN 6145-01-078-6022
NSN 5915-01-134-8491