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 5835-01-362-0305
NSN 6135-00-191-6444
NSN 6650-01-454-5175
NSN 6105-00-105-8735
NSN 6105-00-709-8811
NSN 6220-00-053-5599
NSN 5975-01-145-2869
NSN 6135-01-420-5907
NSN 5945-01-576-4715
NSN 5965-01-568-3492
NSN 5950-01-210-1632
NSN 5930-00-196-6817