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 6645-00-460-0528
NSN 6240-00-918-2426
NSN 6685-01-146-4498
NSN 5999-01-484-9944
NSN 4140-01-515-2722
NSN 6645-01-578-7959
NSN 5905-01-447-8612
NSN 5975-00-244-0706
NSN 5895-01-628-1792
NSN 5950-01-537-9763
NSN 5855-00-482-9876
NSN 6220-01-152-1701