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 6105-01-407-1329
NSN 6620-01-202-6756
NSN 6620-01-183-5329
NSN 6610-01-152-2821
NSN 6320-01-160-7757
NSN 6650-01-470-1315
NSN 2925-00-596-9775
NSN 7035-00-275-5604
NSN 5930-00-155-5917
NSN 6105-00-827-0616
NSN 2925-01-454-2046
NSN 6240-01-068-8828