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 5945-01-020-9877
NSN 6650-00-070-0998
NSN 7035-00-406-0568
NSN 5975-01-436-0443
NSN 5920-01-570-7359
NSN 5855-01-040-3881
NSN 5998-00-510-6423
NSN 6110-01-349-5360
NSN 5920-01-169-7888
NSN 5990-01-193-0487
NSN 6110-01-645-3650
NSN 6150-01-094-4781