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 5835-01-495-0595
NSN 6650-00-035-9297
NSN 5990-00-186-2445
NSN 5945-00-934-9045
NSN 6240-00-832-6867
NSN 6145-01-153-1413
NSN 5935-00-950-5517
NSN 5835-00-779-2836
NSN 5985-01-013-2045
NSN 7035-01-550-9760
NSN 5915-01-084-2966
NSN 5975-00-734-6243