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 5910-01-249-5853
NSN 6620-00-867-6156
NSN 6220-00-935-6881
NSN 5960-01-386-9611
NSN 5985-01-018-9431
NSN 5930-01-212-8939
NSN 5999-00-572-6343
NSN 6220-01-214-4406
NSN 6105-01-553-5077
NSN 6105-00-822-9483
NSN 6130-00-239-3594
NSN 5920-01-478-5390