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 5920-01-447-1445
NSN 6130-01-384-1982
NSN 5915-00-071-2267
NSN 5905-01-050-1827
NSN 5985-01-449-2511
NSN 6145-00-559-7774
NSN 6130-00-035-3898
NSN 4140-01-260-6182
NSN 5996-01-179-2681
NSN 5985-01-499-5357
NSN 6240-00-329-9573
NSN 5930-01-315-7538