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 6685-01-362-3144
NSN 5945-01-469-7093
NSN 6650-01-350-4866
NSN 5945-00-791-0833
NSN 5998-01-312-9048
NSN 5930-01-634-0659
NSN 5975-00-160-2407
NSN 6620-01-248-0358
NSN 5925-00-834-0272
NSN 5998-01-206-4280
NSN 5990-01-105-5336
NSN 5895-01-143-3851