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 4140-00-880-5140
NSN 5950-01-105-8929
NSN 5915-01-271-7299
NSN 2925-01-097-0903
NSN 6320-01-082-2970
NSN 6610-01-513-0654
NSN 6110-01-106-0182
NSN 5975-00-269-4365
NSN 6130-01-634-0603
NSN 6620-00-730-8699
NSN 5905-01-047-7796
NSN 6240-00-044-8836