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 6610-01-233-0949
NSN 6320-00-925-0558
NSN 5930-01-380-0255
NSN 7035-01-301-3263
NSN 5985-01-551-0890
NSN 5965-01-577-8503
NSN 5975-00-390-3893
NSN 5996-01-177-2848
NSN 6105-01-596-4439
NSN 6650-01-261-5239
NSN 4140-00-606-9453
NSN 5960-01-286-3766