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 6645-01-258-4314
NSN 6320-01-462-2295
NSN 2925-01-397-2495
NSN 5985-01-177-4338
NSN 6685-01-075-6971
NSN 5915-01-265-8357
NSN 5925-01-154-2468
NSN 6145-01-368-6165
NSN 4140-01-448-3132
NSN 6150-01-239-5236
NSN 5960-01-219-5504
NSN 6685-01-141-7034