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 5920-01-239-2038
NSN 5945-00-734-5985
NSN 5835-01-535-0948
NSN 4140-00-419-0631
NSN 5998-00-754-8666
NSN 4140-01-327-3241
NSN 6150-00-058-4892
NSN 5930-01-208-5041
NSN 5930-00-717-6694
NSN 6645-01-592-7862
NSN 5925-00-286-8502
NSN 5905-00-840-0300