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 5835-01-221-6751
NSN 6610-01-162-8258
NSN 5920-01-527-5388
NSN 6105-00-864-9468
NSN 6320-00-646-3311
NSN 6320-00-882-7061
NSN 6130-01-544-4769
NSN 6320-01-422-1212
NSN 5835-01-555-8963
NSN 5960-01-008-4636
NSN 6135-01-116-3385
NSN 5925-01-204-8583