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 2925-01-149-2865
NSN 5920-01-512-9897
NSN 5925-01-036-5560
NSN 5925-01-623-0051
NSN 5855-01-408-1786
NSN 5935-00-886-1650
NSN 5930-01-324-8228
NSN 5935-01-215-1009
NSN 5905-01-076-4599
NSN 5895-01-202-1168
NSN 6320-01-512-2031
NSN 5960-01-333-7557