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 5985-01-128-8247
NSN 6150-01-548-4024
NSN 2925-01-167-6500
NSN 6220-01-429-8534
NSN 5910-01-276-1127
NSN 5910-01-471-3168
NSN 5905-00-081-8913
NSN 4140-01-142-2971
NSN 4140-01-137-3264
NSN 6240-00-443-8000
NSN 5990-01-334-4111
NSN 6110-00-939-7065