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 6130-00-195-2130
NSN 6130-01-366-3919
NSN 6650-01-657-5108
NSN 5915-00-204-4660
NSN 6620-01-245-0184
NSN 6135-00-577-8429
NSN 6145-01-298-1328
NSN 5895-00-088-6024
NSN 5855-01-360-6650
NSN 6130-01-615-6903
NSN 6620-00-420-1061
NSN 7035-01-141-8076