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 6135-01-164-3561
NSN 5990-01-341-5735
NSN 5910-01-288-8289
NSN 5996-01-443-2324
NSN 5950-01-123-9517
NSN 5975-00-688-4625
NSN 5930-00-379-8990
NSN 5998-01-571-8105
NSN 5835-01-387-4227
NSN 5945-01-658-4619
NSN 2925-00-198-5671
NSN 4140-01-190-5150