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 6240-01-171-9500
NSN 5945-01-211-5065
NSN 5905-00-010-0641
NSN 6240-01-457-7978
NSN 7035-00-763-6180
NSN 5920-00-761-8062
NSN 7035-01-223-3002
NSN 5975-01-426-2286
NSN 5960-01-539-1956
NSN 5999-01-533-9899
NSN 6685-01-141-7746
NSN 6645-01-268-0544