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 5905-01-505-0699
NSN 6320-00-139-1090
NSN 5975-00-529-3835
NSN 4140-01-580-8573
NSN 5895-00-602-2929
NSN 5855-01-589-1935
NSN 6135-00-491-9864
NSN 6650-01-369-6536
NSN 6150-01-116-6236
NSN 6105-00-605-9709
NSN 5930-01-322-8107
NSN 5915-01-380-3934