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 5950-01-111-8481
NSN 5935-00-226-6040
NSN 6620-01-621-0719
NSN 6130-01-078-5507
NSN 6320-00-116-3658
NSN 6150-00-377-3926
NSN 6135-01-299-7252
NSN 6240-00-725-7960
NSN 5895-01-351-7391
NSN 5930-00-398-1517
NSN 5945-01-094-6343
NSN 5930-01-310-9869