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 7035-01-365-9610
NSN 6110-00-468-2343
NSN 5930-00-189-2745
NSN 5935-01-486-1552
NSN 5915-00-241-6493
NSN 6620-01-508-1996
NSN 4140-00-113-8215
NSN 6320-01-399-6177
NSN 5915-01-521-2433
NSN 6135-01-591-7139
NSN 5990-00-105-7832
NSN 6610-01-394-4944