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 5950-01-439-5639
NSN 6685-00-248-7716
NSN 6145-00-243-0583
NSN 5920-01-415-5805
NSN 7035-01-524-8969
NSN 6240-01-320-1308
NSN 6105-01-376-2138
NSN 5965-00-954-3011
NSN 5996-01-572-9530
NSN 5925-00-111-1969
NSN 5920-01-218-6191
NSN 7035-01-551-3258