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 6105-01-245-8932
NSN 6145-00-880-6382
NSN 6105-01-220-2210
NSN 5950-01-276-0519
NSN 5930-00-401-3383
NSN 5999-00-492-8926
NSN 7035-01-169-6551
NSN 2925-01-430-4206
NSN 6620-01-492-8470
NSN 2925-01-144-7106
NSN 5835-01-223-1790
NSN 6150-00-291-8319