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 6240-01-042-3650
NSN 5998-00-155-6002
NSN 6145-00-828-9024
NSN 6685-00-332-2655
NSN 5965-00-961-1627
NSN 6105-01-581-5495
NSN 5835-00-901-4932
NSN 5930-00-431-5508
NSN 6145-01-399-0299
NSN 5990-00-173-2816
NSN 5945-01-397-6453
NSN 6145-00-833-7753