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 5915-01-309-0038
NSN 5990-01-512-9129
NSN 6105-01-113-7039
NSN 5835-01-049-3452
NSN 6105-00-149-7350
NSN 6150-00-728-2485
NSN 5996-01-056-4952
NSN 2925-00-816-8765
NSN 5975-00-950-7144
NSN 5945-01-556-1622
NSN 5990-01-587-8562
NSN 6145-01-365-4022