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 2925-01-147-6688
NSN 5855-01-346-2881
NSN 6240-01-352-0882
NSN 5895-00-417-3215
NSN 6645-00-070-8277
NSN 4140-01-494-9367
NSN 5998-01-034-5197
NSN 5996-01-419-3573
NSN 6320-00-242-3300
NSN 2925-01-400-2286
NSN 5985-01-588-2492
NSN 5960-01-649-1341