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 2925-00-831-7024
NSN 5855-00-237-4088
NSN 6645-00-558-0028
NSN 6150-01-352-8531
NSN 5910-00-837-2579
NSN 5895-01-393-1517
NSN 6150-00-636-8938
NSN 6135-00-803-3012
NSN 5895-01-415-3732
NSN 5855-01-023-3727
NSN 7035-01-364-0286
NSN 5935-01-641-8348