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 6645-01-075-7722
NSN 5975-01-067-7158
NSN 5895-01-506-9868
NSN 6645-01-118-8526
NSN 5985-00-189-0599
NSN 5835-00-581-9460
NSN 7035-01-068-1096
NSN 4140-00-555-1907
NSN 6135-00-078-9931
NSN 6220-00-283-9791
NSN 6650-01-061-0613
NSN 5945-01-090-4028