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 6610-01-432-3229
NSN 6240-00-660-8849
NSN 7035-00-546-2560
NSN 5895-00-891-4498
NSN 5960-01-025-9388
NSN 6105-00-928-3699
NSN 2925-01-027-1293
NSN 5935-01-651-9517
NSN 5998-00-208-1928
NSN 6645-01-094-8917
NSN 5990-01-443-2931
NSN 2925-00-221-4977