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 5915-01-141-6726
NSN 5975-01-395-2956
NSN 6620-01-035-7300
NSN 6685-01-556-3449
NSN 6320-01-021-6633
NSN 5999-00-109-2044
NSN 5915-00-589-4186
NSN 5915-00-269-4463
NSN 5915-01-381-3087
NSN 5910-00-934-2783
NSN 6145-00-286-9588
NSN 5935-01-459-1555