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 5895-01-504-2979
NSN 5910-01-200-8413
NSN 6135-00-553-7995
NSN 5935-01-371-6707
NSN 6620-01-046-8623
NSN 5855-01-646-1585
NSN 5950-01-411-5778
NSN 6240-00-011-5273
NSN 5945-01-515-7607
NSN 6130-01-221-9469
NSN 5975-00-763-5086
NSN 5930-01-502-8274