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 5835-01-257-0154
NSN 4140-01-566-4008
NSN 5965-01-420-6613
NSN 5965-01-447-3767
NSN 2925-01-474-3363
NSN 6110-01-128-5018
NSN 5835-00-233-6327
NSN 5996-01-569-4799
NSN 6645-01-567-8282
NSN 6650-01-230-1501
NSN 5945-00-419-7587
NSN 5835-00-969-5771