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 5925-00-826-6901
NSN 6620-01-519-2628
NSN 5945-01-568-4587
NSN 6135-00-715-4001
NSN 6145-01-319-1007
NSN 5975-00-016-4138
NSN 5945-01-163-8683
NSN 6685-00-239-5700
NSN 7035-00-478-4596
NSN 2925-01-345-9439
NSN 5835-00-980-0468
NSN 6620-01-440-9810