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 5930-01-445-5408
NSN 5945-00-409-6580
NSN 6145-00-427-7201
NSN 5950-00-999-2412
NSN 6220-00-332-9408
NSN 5945-01-459-8998
NSN 6645-01-441-0937
NSN 5999-01-365-5147
NSN 6240-00-451-8587
NSN 5920-00-138-7645
NSN 6650-01-605-4399
NSN 5950-01-502-8219