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 6610-01-611-5323
NSN 5910-00-267-9509
NSN 6645-00-515-6148
NSN 5975-01-380-7621
NSN 5915-01-143-0937
NSN 5905-00-882-8969
NSN 5930-00-407-1657
NSN 2925-01-054-3190
NSN 6240-01-423-1335
NSN 6320-01-015-9856
NSN 7035-01-421-7159
NSN 2925-00-395-8751