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 6130-00-871-3690
NSN 6130-00-573-8807
NSN 2925-00-436-3527
NSN 5945-00-507-9730
NSN 5999-01-155-4849
NSN 5960-01-344-2604
NSN 6110-01-327-3282
NSN 5990-00-133-7734
NSN 6685-01-381-4893
NSN 2925-01-055-7607
NSN 5895-00-831-7089
NSN 6610-01-607-4525