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 5835-01-564-3486
NSN 6320-01-600-0787
NSN 6220-01-397-8060
NSN 6650-01-540-3318
NSN 5990-01-443-2931
NSN 5950-01-573-7961
NSN 6105-01-100-1476
NSN 5835-01-457-7951
NSN 5855-00-361-0167
NSN 5835-01-508-2528
NSN 6320-00-194-4252
NSN 6320-00-937-5625