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 5855-01-266-1645
NSN 5920-01-485-4568
NSN 6145-01-578-1561
NSN 6135-00-998-5884
NSN 6150-01-394-5316
NSN 5985-01-158-5645
NSN 5855-01-321-3881
NSN 5950-00-123-7028
NSN 5920-01-369-1801
NSN 5990-01-609-4793
NSN 5915-00-288-0071
NSN 7035-00-679-9027