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 5835-01-138-8622
NSN 5960-01-111-7923
NSN 6650-01-528-2848
NSN 6110-01-104-9589
NSN 6105-01-322-7653
NSN 7035-01-573-3960
NSN 5998-01-106-9502
NSN 6145-01-489-1003
NSN 6645-00-763-1301
NSN 5990-00-452-9194
NSN 5855-00-179-8588
NSN 6650-01-444-1321