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 5925-01-331-0235
NSN 2925-01-157-9204
NSN 5975-01-271-4682
NSN 6145-00-084-6035
NSN 6150-01-426-8043
NSN 5935-00-117-4700
NSN 6320-01-015-9856
NSN 6135-01-246-0308
NSN 6620-01-212-1417
NSN 5950-01-359-1997
NSN 6240-01-014-5598
NSN 5960-01-382-8772