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 5930-01-345-3212
NSN 5998-00-377-9329
NSN 5855-00-928-1912
NSN 5945-00-180-8374
NSN 5998-01-203-0888
NSN 6105-00-189-0515
NSN 6150-01-360-5880
NSN 4140-01-506-6529
NSN 6610-01-285-8444
NSN 5925-01-263-3846
NSN 5925-01-646-3988
NSN 6135-00-686-4777