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 2925-01-201-3043
NSN 6220-01-487-3904
NSN 6135-01-641-4356
NSN 6610-00-322-7873
NSN 5895-01-603-3607
NSN 2925-01-225-0713
NSN 5996-00-151-4462
NSN 5960-01-443-3067
NSN 5975-00-293-3995
NSN 6145-01-435-6528
NSN 6320-01-366-5157
NSN 5998-01-649-6003