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 5855-01-312-5160
NSN 5975-01-045-3705
NSN 5998-00-250-2005
NSN 2925-01-179-2648
NSN 5965-01-363-9310
NSN 5910-00-542-2010
NSN 6610-00-692-4460
NSN 5895-01-339-5324
NSN 6145-00-295-1503
NSN 5985-01-010-1369
NSN 6320-00-194-4252
NSN 5975-01-551-1118