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 5905-01-192-9101
NSN 5950-00-205-2932
NSN 5960-00-103-5216
NSN 5950-01-648-4142
NSN 6105-01-421-6925
NSN 6220-00-861-3224
NSN 5920-01-227-6998
NSN 5960-01-334-5146
NSN 6110-01-049-7256
NSN 6145-00-163-2861
NSN 5925-00-837-9467
NSN 5920-00-345-5833