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 5960-01-443-3067
NSN 6650-01-146-5000
NSN 5996-01-251-4900
NSN 6145-00-635-6049
NSN 6685-01-362-3144
NSN 6145-00-773-2026
NSN 4140-01-241-2197
NSN 6240-01-494-7299
NSN 6145-01-542-9141
NSN 6650-01-589-3585
NSN 5905-01-212-2043
NSN 6105-00-563-0494