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 7035-01-438-2108
NSN 5998-01-591-3660
NSN 6620-00-186-8220
NSN 6110-00-260-0130
NSN 6145-01-476-8294
NSN 5960-01-495-0859
NSN 6220-01-164-7654
NSN 6145-00-317-2087
NSN 7035-00-973-9215
NSN 5915-00-541-5589
NSN 4140-01-425-1725
NSN 5950-01-164-2489