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 6645-01-076-4655
NSN 5895-01-336-7477
NSN 6645-00-283-6794
NSN 5985-01-550-9852
NSN 6130-00-017-2842
NSN 4140-01-192-6528
NSN 6145-00-589-1250
NSN 5915-01-454-3175
NSN 5950-01-456-4670
NSN 4140-00-968-7367
NSN 6645-01-352-6583
NSN 6685-01-537-0829