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 5915-01-113-7872
NSN 6110-00-925-7410
NSN 5855-01-228-0942
NSN 6620-01-254-7963
NSN 5998-00-115-7561
NSN 6150-01-542-1786
NSN 5935-01-233-3260
NSN 6150-00-679-7066
NSN 5985-01-468-9490
NSN 6105-01-454-6564
NSN 6645-00-838-6939
NSN 6220-01-066-5529