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 5910-01-617-3118
NSN 6150-00-116-3481
NSN 5990-00-067-6545
NSN 6105-00-764-6483
NSN 7035-01-364-8454
NSN 5960-00-468-5353
NSN 5925-00-204-8204
NSN 5945-01-106-3893
NSN 5855-00-631-4565
NSN 6110-01-109-4382
NSN 5990-00-924-8024
NSN 6645-00-925-3857