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 4140-01-334-9043
NSN 6220-01-593-8648
NSN 5965-00-378-3403
NSN 5996-01-116-2523
NSN 6620-01-319-9804
NSN 5905-01-312-3897
NSN 7035-00-140-0474
NSN 5910-01-435-9185
NSN 5960-00-064-6530
NSN 5835-00-617-3578
NSN 5855-01-492-5666
NSN 6240-00-526-0243