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 5915-01-406-2626
NSN 6240-01-633-9357
NSN 5920-00-655-1154
NSN 4140-01-215-1125
NSN 6150-01-314-5816
NSN 5920-01-634-0250
NSN 6645-01-591-3970
NSN 6220-01-003-9126
NSN 6150-01-477-0905
NSN 5960-01-091-2444
NSN 5965-01-429-9777
NSN 6610-00-398-9673