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 6685-01-476-3276
NSN 5925-01-221-8107
NSN 6685-00-475-9589
NSN 6240-01-006-1261
NSN 6135-00-234-6508
NSN 7035-01-235-6023
NSN 5920-00-362-1376
NSN 6685-00-617-3733
NSN 6620-01-439-5473
NSN 6135-01-353-1036
NSN 5996-01-621-4031
NSN 5925-01-429-7699