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 5905-00-284-4000
NSN 6105-00-216-8866
NSN 5990-00-199-0081
NSN 6130-00-351-0309
NSN 5895-01-136-8680
NSN 6240-01-446-6171
NSN 7035-01-602-9350
NSN 5998-00-188-4420
NSN 5910-01-044-3579
NSN 6685-01-253-8747
NSN 6650-01-175-0841
NSN 7035-01-499-0680