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 6130-00-109-9091
NSN 5965-00-430-4168
NSN 5998-01-434-0036
NSN 6320-01-527-0211
NSN 5835-01-454-1006
NSN 6110-00-319-1390
NSN 5945-01-434-7694
NSN 6130-01-146-4221
NSN 5985-00-431-0359
NSN 5975-00-997-4766
NSN 5855-00-316-5050
NSN 6645-01-442-1885