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 5905-00-090-2439
NSN 6320-01-492-1976
NSN 5985-00-974-3077
NSN 6320-01-249-3236
NSN 6645-01-292-6987
NSN 5998-00-382-9284
NSN 5950-00-284-7159
NSN 5935-00-348-6621
NSN 6645-00-954-4065
NSN 6685-00-358-8331
NSN 5975-01-557-4477
NSN 6220-00-884-8743