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 6240-01-647-3790
NSN 5950-01-021-8394
NSN 5998-01-555-8808
NSN 5835-01-013-9321
NSN 6240-01-206-4809
NSN 6135-01-109-8763
NSN 2925-01-333-6346
NSN 6130-01-394-7590
NSN 5920-01-048-0766
NSN 6110-01-461-5116
NSN 5960-01-296-3306
NSN 6645-00-960-6594