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 6135-01-185-3614
NSN 5999-01-370-4905
NSN 5960-01-368-5874
NSN 5835-00-450-0079
NSN 6150-00-100-9226
NSN 6645-01-515-9951
NSN 5990-01-118-8624
NSN 5965-01-463-2815
NSN 5835-00-286-5432
NSN 6610-00-186-9180
NSN 5950-01-252-2958
NSN 5945-01-341-4328