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 5985-00-308-6341
NSN 5895-01-602-0487
NSN 5895-01-233-0683
NSN 6150-00-228-4874
NSN 5920-01-578-6279
NSN 6320-01-481-7322
NSN 5999-01-144-2003
NSN 5920-00-072-1492
NSN 5960-01-170-4057
NSN 5990-01-105-0260
NSN 6240-00-725-7960
NSN 5855-01-542-9059