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 5855-01-120-7831
NSN 5965-00-055-8013
NSN 6645-01-510-1984
NSN 5950-01-287-1957
NSN 5905-01-212-2751
NSN 6650-01-413-8408
NSN 5985-01-353-4943
NSN 5915-01-215-1183
NSN 5910-00-816-9096
NSN 6145-00-929-7984
NSN 5950-01-506-1086
NSN 5895-01-369-9809