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 6240-01-421-6655
NSN 2925-01-633-4048
NSN 5950-00-222-4745
NSN 6645-00-845-1071
NSN 2925-01-567-8027
NSN 5996-01-329-6157
NSN 6110-00-372-4780
NSN 5905-00-022-7930
NSN 5915-01-464-4446
NSN 5965-00-815-2525
NSN 6135-00-935-2589
NSN 5910-01-519-8236