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 6620-01-152-4099
NSN 5950-01-071-6888
NSN 5965-01-321-9598
NSN 4140-01-434-1463
NSN 5935-01-308-7927
NSN 6130-01-596-0540
NSN 6620-00-608-1480
NSN 5975-01-553-2795
NSN 6220-00-100-6276
NSN 7035-01-287-9817
NSN 5998-00-275-2145
NSN 5905-00-084-3493