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 5950-01-487-1118
NSN 5920-01-275-2260
NSN 5905-01-273-8147
NSN 5945-00-010-3007
NSN 5945-01-283-0828
NSN 5965-01-321-9598
NSN 6645-00-484-1992
NSN 5835-00-630-2775
NSN 6145-01-314-0102
NSN 5855-00-147-2508
NSN 5920-01-455-4835
NSN 5855-00-247-7219