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 5930-01-603-8033
NSN 6320-00-809-5744
NSN 5895-01-529-5404
NSN 5950-00-127-2479
NSN 5998-01-034-2722
NSN 5985-01-310-6373
NSN 5998-01-471-4856
NSN 5996-01-536-8448
NSN 6145-01-372-9423
NSN 2925-01-603-6379
NSN 5895-00-216-5849
NSN 5985-00-243-2852