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 6150-01-468-6745
NSN 7035-01-547-9632
NSN 5915-01-012-1854
NSN 5925-00-741-5420
NSN 6145-01-296-4771
NSN 7035-01-442-7947
NSN 6610-01-021-5068
NSN 6645-00-394-8924
NSN 6610-01-601-1833
NSN 6145-01-136-4622
NSN 5930-01-548-8210
NSN 5910-01-146-2076