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 5855-01-608-4351
NSN 5985-01-167-7502
NSN 5950-01-184-4138
NSN 5835-01-592-2350
NSN 5935-01-230-3464
NSN 6130-00-243-2208
NSN 4140-00-069-5154
NSN 5998-01-399-0615
NSN 6620-00-466-2314
NSN 6145-00-832-5323
NSN 5905-01-125-3656
NSN 5915-00-860-0861