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 5998-01-412-0928
NSN 5855-00-089-3974
NSN 5960-00-788-8422
NSN 5910-00-388-6737
NSN 6145-01-634-0388
NSN 6240-00-894-4604
NSN 5920-01-362-8373
NSN 5905-00-107-7387
NSN 6610-01-204-7281
NSN 5855-00-472-2055
NSN 5905-01-198-9927
NSN 5910-01-593-6347