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 6320-00-238-9973
NSN 6620-00-613-3023
NSN 6150-01-580-9544
NSN 5915-00-386-9575
NSN 5945-01-162-2195
NSN 5835-01-522-9881
NSN 6610-00-821-2635
NSN 6135-00-452-2266
NSN 6685-00-052-7378
NSN 5915-01-414-2782
NSN 5975-00-043-0778
NSN 5990-00-734-3837