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 5985-01-137-9186
NSN 7035-01-146-7096
NSN 5975-01-370-4455
NSN 4140-01-058-6602
NSN 5835-01-061-6876
NSN 6220-01-088-5915
NSN 6645-00-204-4100
NSN 5855-01-222-1242
NSN 6240-00-752-2581
NSN 5935-01-258-7963
NSN 5855-01-602-6977
NSN 5960-01-040-4442