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 5998-01-509-7156
NSN 4140-01-184-1290
NSN 6610-00-290-0758
NSN 5985-00-706-8491
NSN 4140-00-394-1217
NSN 6620-00-948-3628
NSN 5915-00-278-5561
NSN 5895-01-416-6243
NSN 5925-01-615-1181
NSN 6135-00-027-3914
NSN 6620-01-570-4026
NSN 5975-01-476-5784