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 5835-01-093-1904
NSN 6135-01-369-0939
NSN 6610-01-327-3187
NSN 5998-00-424-2697
NSN 5920-01-133-5286
NSN 5920-01-348-2234
NSN 5935-01-403-2844
NSN 4140-01-044-8808
NSN 7035-00-541-8516
NSN 6150-01-096-7616
NSN 5855-00-688-9954
NSN 5998-00-116-2227