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 5905-00-315-3857
NSN 5945-01-272-4414
NSN 5905-00-519-0582
NSN 5930-01-090-1603
NSN 5945-01-006-1825
NSN 6105-01-219-1619
NSN 5998-01-099-1822
NSN 7035-01-245-9585
NSN 6645-00-933-2170
NSN 6220-00-008-3920
NSN 6620-00-428-9866
NSN 7035-01-546-4417