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 6105-01-030-5273
NSN 6130-01-595-5436
NSN 5945-01-023-2789
NSN 5925-01-561-4264
NSN 6110-00-839-2654
NSN 6240-00-266-9944
NSN 5925-01-523-4838
NSN 5945-00-719-4379
NSN 2925-00-051-1467
NSN 5855-01-138-4985
NSN 5990-00-105-7831
NSN 5920-01-443-3771