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 4140-00-365-2531
NSN 5960-00-175-7620
NSN 6135-01-629-3346
NSN 5930-01-194-4477
NSN 5905-01-195-1359
NSN 5835-01-227-2318
NSN 5945-00-343-7561
NSN 6135-01-632-9323
NSN 5905-00-910-9486
NSN 5998-01-422-3743
NSN 6130-00-825-7552
NSN 5990-01-149-9228