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 5925-01-536-5718
NSN 6645-00-287-9192
NSN 4140-01-121-0876
NSN 7035-01-435-7962
NSN 5910-01-147-9483
NSN 5905-00-142-4698
NSN 6610-00-872-2597
NSN 5855-00-610-4052
NSN 6130-00-626-0082
NSN 5910-01-155-9451
NSN 6220-01-220-2836
NSN 6130-00-205-1714