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 4140-00-337-6631
NSN 6610-00-785-4054
NSN 5920-01-464-3863
NSN 5975-01-331-9045
NSN 7035-00-500-7839
NSN 6240-00-655-2523
NSN 5945-01-330-3490
NSN 6240-00-260-0399
NSN 6105-01-213-0142
NSN 6320-01-607-1491
NSN 5835-00-170-5238
NSN 6620-01-574-6774