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 5835-01-336-1153
NSN 5855-00-149-0766
NSN 5920-01-537-6243
NSN 6150-01-652-4896
NSN 5905-01-389-2296
NSN 7035-00-349-8571
NSN 7035-01-339-3665
NSN 6135-00-985-7846
NSN 5996-01-388-4412
NSN 5895-01-263-5123
NSN 5895-01-524-7871
NSN 2925-00-091-6745