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 6650-01-454-1131
NSN 5975-01-448-5021
NSN 5915-00-874-0493
NSN 2925-01-159-8312
NSN 5835-00-924-4268
NSN 6685-00-527-9489
NSN 5999-00-089-9096
NSN 6130-01-400-6123
NSN 5835-01-645-2892
NSN 6220-01-279-0527
NSN 5905-01-444-5901
NSN 5910-01-288-0730