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 5996-01-609-8502
NSN 5990-00-636-4218
NSN 6145-01-565-8605
NSN 5930-00-162-5448
NSN 5965-00-201-7479
NSN 5925-00-581-3664
NSN 6150-01-582-5956
NSN 5990-00-474-5609
NSN 2925-01-350-5440
NSN 6650-01-027-7165
NSN 5925-01-651-6310
NSN 7035-01-585-5888