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 4140-00-159-8471
NSN 6685-01-123-3248
NSN 6650-00-254-8966
NSN 6145-01-179-9854
NSN 6150-01-313-1423
NSN 6320-01-006-6138
NSN 6135-01-512-8740
NSN 5985-00-096-5510
NSN 6105-00-446-2971
NSN 6240-01-482-8243
NSN 5930-01-382-8213
NSN 6610-01-240-4753