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 5965-01-012-1065
NSN 6320-00-691-8514
NSN 5975-01-442-7264
NSN 6130-01-303-7155
NSN 5925-01-541-9251
NSN 5985-00-020-2990
NSN 6610-01-160-6585
NSN 6105-01-151-8538
NSN 6240-01-137-1279
NSN 5930-01-615-4930
NSN 5975-01-456-9274
NSN 5835-01-632-6627