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 6105-01-431-8998
NSN 2925-00-670-0638
NSN 5996-00-249-6091
NSN 6645-01-076-4655
NSN 5925-01-591-3580
NSN 2925-01-074-5303
NSN 6145-01-303-9840
NSN 5935-01-342-2756
NSN 5920-00-613-3116
NSN 6645-01-043-9587
NSN 5999-00-232-5140
NSN 6620-01-134-7387