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 6240-01-298-9258
NSN 6150-01-294-6241
NSN 5855-00-089-3974
NSN 5945-01-374-7021
NSN 5950-01-100-4903
NSN 5975-01-107-5884
NSN 5930-01-170-6722
NSN 6645-01-227-2036
NSN 5990-01-480-6711
NSN 5945-01-099-0981
NSN 6110-01-574-6935
NSN 2925-00-624-9199