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 6620-01-447-2172
NSN 2925-01-492-5342
NSN 5999-01-440-2473
NSN 4140-01-188-0111
NSN 5855-00-939-4496
NSN 5945-00-421-6401
NSN 6150-01-392-2182
NSN 6320-01-449-1014
NSN 6240-01-126-4461
NSN 5999-01-416-2969
NSN 5920-01-200-6274
NSN 6130-01-397-8806