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 6105-00-993-5244
NSN 6320-01-399-6177
NSN 6150-00-247-0074
NSN 5990-01-434-7913
NSN 6145-01-215-0178
NSN 5920-01-342-2227
NSN 6320-00-295-2854
NSN 5990-00-905-6472
NSN 6150-00-179-3049
NSN 5960-01-491-9916
NSN 5996-00-615-9665
NSN 6135-01-100-3593