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 5965-00-665-1021
NSN 5925-01-531-3413
NSN 5915-01-422-2014
NSN 7035-01-119-6271
NSN 5910-00-764-8575
NSN 5998-00-055-6945
NSN 6145-01-093-0036
NSN 5985-01-029-7046
NSN 6620-01-383-7519
NSN 5935-00-244-6065
NSN 5915-01-572-8391
NSN 6320-01-191-5036