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 4140-01-447-8964
NSN 2925-01-180-9264
NSN 6130-00-801-5359
NSN 5920-01-632-9399
NSN 2925-01-422-1542
NSN 5925-01-558-6709
NSN 6240-01-646-2350
NSN 6105-01-291-1844
NSN 5930-01-597-5050
NSN 5999-00-786-9623
NSN 6685-01-641-8373
NSN 5996-01-657-1447