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 5985-01-109-0772
NSN 6220-00-079-0851
NSN 6240-01-437-8991
NSN 4140-00-274-9638
NSN 5835-01-100-3265
NSN 5999-01-376-3362
NSN 6610-01-381-3181
NSN 6240-00-553-8891
NSN 5975-00-489-2767
NSN 4140-00-890-6447
NSN 5945-00-170-2768
NSN 5835-01-313-7054