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 6135-01-512-8105
NSN 5895-01-093-8333
NSN 6150-01-262-8612
NSN 6145-01-085-7394
NSN 6135-01-045-1504
NSN 5985-01-395-0531
NSN 5915-00-243-2030
NSN 5930-00-192-6350
NSN 5996-01-164-2435
NSN 4140-01-423-9453
NSN 5945-00-822-6149
NSN 6135-01-339-3873