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 5910-01-292-8214
NSN 6105-01-147-5586
NSN 5990-00-959-3312
NSN 6145-01-562-8155
NSN 6130-00-100-0175
NSN 5998-01-227-5651
NSN 4140-01-489-6004
NSN 5935-01-289-7650
NSN 6240-01-337-7174
NSN 4140-00-660-8699
NSN 4140-01-149-4803
NSN 5990-01-154-7296