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 6110-01-423-9952
NSN 5835-01-514-5758
NSN 6610-01-615-9861
NSN 6610-01-609-7776
NSN 5915-01-300-2610
NSN 5915-01-005-5126
NSN 6130-01-511-0108
NSN 5975-00-123-6441
NSN 6130-00-651-7326
NSN 5975-01-634-0678
NSN 6685-00-113-8242
NSN 5930-01-107-0770