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 5935-01-274-6605
NSN 6105-01-426-7906
NSN 6135-01-400-2947
NSN 6145-00-432-7431
NSN 5930-01-630-1583
NSN 5960-00-558-9152
NSN 5950-00-474-3194
NSN 5990-00-783-4560
NSN 5925-01-552-0666
NSN 6610-01-406-4985
NSN 5855-01-027-8414
NSN 6645-01-633-1852