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 6645-00-134-9358
NSN 5835-01-148-5835
NSN 6220-01-627-7940
NSN 6620-01-119-9239
NSN 5910-00-502-7031
NSN 5996-01-505-6099
NSN 5985-01-634-0321
NSN 6110-01-373-5305
NSN 6240-00-326-2966
NSN 5905-01-337-0970
NSN 5950-01-364-1139
NSN 5855-01-502-8525