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 6685-01-471-3554
NSN 6150-01-434-3353
NSN 5855-00-487-9691
NSN 5905-01-643-6555
NSN 6220-00-595-6954
NSN 7035-00-500-7839
NSN 6650-00-864-2942
NSN 5990-00-226-1152
NSN 5855-00-885-8452
NSN 5910-01-627-9039
NSN 6685-01-028-4072
NSN 5999-00-759-5311