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 6645-00-004-8628
NSN 5996-01-275-0706
NSN 6610-00-225-9886
NSN 5950-00-113-4398
NSN 6145-01-349-9882
NSN 6610-01-521-2438
NSN 2925-00-596-9775
NSN 6610-01-555-8364
NSN 5925-01-216-6397
NSN 5999-01-076-4692
NSN 6220-01-148-7953
NSN 5999-01-224-7525