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 5975-01-385-6781
NSN 5915-00-300-3853
NSN 6320-01-512-2031
NSN 4140-01-356-7967
NSN 6610-01-266-3447
NSN 5925-00-222-6199
NSN 5835-01-205-6614
NSN 6685-01-421-4403
NSN 6650-00-434-0188
NSN 5975-00-110-6171
NSN 6150-01-555-8238
NSN 6145-01-317-2686