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 5990-01-443-2931
NSN 5975-01-145-7822
NSN 6150-01-505-2181
NSN 2925-00-675-9152
NSN 6105-00-031-2551
NSN 5950-01-142-8302
NSN 5855-01-655-4035
NSN 6320-01-618-3835
NSN 5945-00-243-9365
NSN 6105-00-134-0827
NSN 5915-01-394-3860
NSN 5996-01-473-2024