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 5998-01-541-1777
NSN 5905-01-419-3025
NSN 7035-01-633-9537
NSN 5950-01-100-1193
NSN 5910-01-016-1787
NSN 4140-00-350-0181
NSN 4140-01-459-1184
NSN 6685-01-200-6831
NSN 5990-01-255-6860
NSN 5835-01-381-1824
NSN 5965-01-195-2168
NSN 5945-00-753-5127