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 6320-00-823-2015
NSN 5998-00-456-3688
NSN 7035-00-020-2227
NSN 5960-01-374-0764
NSN 5895-01-025-0409
NSN 5835-01-464-7038
NSN 6240-01-450-9269
NSN 6685-00-811-3961
NSN 6110-01-006-6718
NSN 6650-01-010-4204
NSN 6150-00-471-9601
NSN 5935-01-048-5047