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 5990-01-348-9829
NSN 5835-01-198-9142
NSN 5975-01-552-8575
NSN 5990-00-918-4467
NSN 7035-00-782-7046
NSN 6610-01-082-3531
NSN 5998-00-237-1937
NSN 6610-01-037-9858
NSN 7035-01-150-1917
NSN 5945-00-173-1064
NSN 5945-00-185-6609
NSN 6220-00-415-7078