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 5990-00-398-0507
NSN 6150-00-227-2424
NSN 7035-01-361-8821
NSN 4140-01-540-9366
NSN 6645-01-407-0204
NSN 6145-01-068-4668
NSN 6240-01-393-9005
NSN 6135-01-040-1446
NSN 5905-01-094-5888
NSN 6645-01-155-9449
NSN 5920-01-168-3232
NSN 5920-00-584-4592