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 5998-01-537-2410
NSN 6650-01-129-8343
NSN 5920-01-398-0580
NSN 5910-00-102-0258
NSN 6685-01-426-8929
NSN 2925-00-075-2714
NSN 5910-00-798-3880
NSN 5930-00-462-9309
NSN 5935-00-143-8275
NSN 5895-01-608-8118
NSN 6610-01-507-4356
NSN 5998-00-444-6746