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 5945-00-209-5170
NSN 5935-00-252-7985
NSN 5998-00-740-7515
NSN 6145-01-113-8205
NSN 6130-01-560-9452
NSN 5960-00-008-1455
NSN 4140-01-029-4211
NSN 6110-00-271-9928
NSN 6110-00-089-6175
NSN 6130-01-378-8462
NSN 6645-00-353-6659
NSN 2925-00-263-2714