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 5965-01-220-0529
NSN 6610-00-942-7272
NSN 5950-00-218-1049
NSN 5960-01-267-6139
NSN 5985-00-884-7209
NSN 5905-01-515-0912
NSN 5996-01-248-2305
NSN 5960-01-364-1318
NSN 5835-01-583-8358
NSN 5960-00-724-5787
NSN 5855-01-027-1571
NSN 6240-01-562-3309