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 6650-00-342-6447
NSN 5835-01-468-4210
NSN 6145-01-634-0388
NSN 6645-01-514-7901
NSN 5945-01-487-4127
NSN 4140-00-916-2771
NSN 6645-01-126-5526
NSN 5950-00-338-7337
NSN 6110-01-152-2840
NSN 5920-01-530-9208
NSN 5915-00-966-4661
NSN 5950-01-110-4765