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 5935-01-093-5207
NSN 6130-00-737-0459
NSN 5990-00-125-5036
NSN 6220-01-281-0349
NSN 5990-01-168-6797
NSN 6685-01-398-1097
NSN 5960-01-548-4896
NSN 5965-00-246-5612
NSN 5975-01-430-2459
NSN 5920-00-216-8665
NSN 6685-01-480-4251
NSN 6105-00-315-1186