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 5975-01-463-9050
NSN 6145-01-357-8698
NSN 5950-00-244-0498
NSN 5925-00-421-6629
NSN 6220-00-186-8565
NSN 5990-01-432-0523
NSN 5915-01-523-9004
NSN 6135-01-432-6201
NSN 5950-00-113-5347
NSN 6135-00-938-1351
NSN 5945-01-077-1857
NSN 6110-01-576-8149