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 6685-00-878-7161
NSN 6110-01-329-9044
NSN 6650-01-556-6941
NSN 5915-01-648-7354
NSN 5895-01-024-9573
NSN 4140-00-075-2000
NSN 6650-00-618-9398
NSN 5930-01-649-3992
NSN 5930-00-309-0874
NSN 4140-01-553-5462
NSN 6145-00-950-2270
NSN 5910-00-970-8188