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 5915-01-327-2795
NSN 5895-01-456-8415
NSN 6240-01-349-5507
NSN 6135-01-515-4260
NSN 5998-01-420-3817
NSN 5945-01-277-6035
NSN 5990-01-493-4039
NSN 5985-01-055-6339
NSN 5930-01-091-5949
NSN 6130-00-601-2837
NSN 6130-01-104-4371
NSN 6610-01-152-2821