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 5998-01-391-4717
NSN 6685-01-626-6204
NSN 6150-00-242-9439
NSN 5975-01-475-2390
NSN 6110-00-171-2214
NSN 6220-00-977-8839
NSN 6145-01-054-3297
NSN 5915-01-153-2623
NSN 6320-00-004-9158
NSN 5925-01-411-1240
NSN 5910-00-080-7220
NSN 5835-00-949-3018