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 6610-00-395-2574
NSN 4140-01-415-1187
NSN 5990-01-089-6743
NSN 5835-01-378-6804
NSN 5985-01-204-1165
NSN 5905-01-273-6671
NSN 5975-00-481-3681
NSN 5950-00-982-0183
NSN 5925-00-116-0879
NSN 6610-00-876-1914
NSN 5930-00-760-3487
NSN 6620-01-087-4361