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 5855-01-395-7429
NSN 6650-01-025-7425
NSN 6105-01-218-4707
NSN 5960-00-533-1125
NSN 6105-01-142-2008
NSN 6610-01-250-9327
NSN 5920-00-683-7883
NSN 6645-01-430-3576
NSN 4140-01-242-8254
NSN 5990-01-299-2014
NSN 6645-00-498-6869
NSN 7035-00-919-3381