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 5998-00-718-1100
NSN 5960-01-416-6187
NSN 5835-01-501-0526
NSN 7035-01-380-3759
NSN 5910-00-170-0197
NSN 6150-01-394-8094
NSN 5999-01-098-1203
NSN 5975-00-216-4848
NSN 4140-00-832-9043
NSN 6650-00-157-9403
NSN 6645-01-273-1097
NSN 5935-01-069-2213