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 6320-01-350-0320
NSN 5945-00-764-9423
NSN 5975-01-264-6803
NSN 5930-01-619-9556
NSN 6320-01-103-6218
NSN 5996-01-366-8852
NSN 5895-01-569-1952
NSN 6145-01-350-3532
NSN 5915-01-408-0636
NSN 2925-00-411-0600
NSN 5975-01-104-5589
NSN