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 5950-01-609-6896
NSN 6145-01-573-7994
NSN 5960-00-907-9161
NSN 5855-01-459-9254
NSN 5905-01-159-4077
NSN 6220-00-391-1076
NSN 6685-01-157-1288
NSN 5915-01-493-9973
NSN 6130-00-419-6175
NSN 6150-01-497-1649
NSN 5999-01-139-5204
NSN 5965-01-227-4517