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 5835-01-056-4149
NSN 5975-01-451-1451
NSN 4140-00-542-4611
NSN 5925-01-351-3660
NSN 5910-01-049-3170
NSN 5895-01-617-2747
NSN 5910-01-350-1984
NSN 2925-00-246-3077
NSN 5920-01-459-7316
NSN 6105-01-451-8031
NSN 6610-01-474-8520
NSN 5950-01-114-6233