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 5999-01-287-8556
NSN 6320-00-403-6003
NSN 5910-00-436-6234
NSN 5935-01-031-8986
NSN 6620-00-602-5832
NSN 6220-00-013-9523
NSN 6240-01-181-1187
NSN 6150-00-450-2813
NSN 5835-01-215-5961
NSN 5835-01-406-4066
NSN 5835-01-391-4556
NSN 6240-01-501-9338