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 6220-01-090-0126
NSN 6130-01-506-3213
NSN 6240-00-269-9477
NSN 5930-01-323-6677
NSN 5999-00-262-0828
NSN 5960-00-052-3289
NSN 5945-01-461-8494
NSN 6220-01-431-9799
NSN 6645-01-350-3138
NSN 7035-00-270-5519
NSN 6645-01-062-0905
NSN 5975-01-548-6253