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 6650-01-367-8917
NSN 5996-01-184-9442
NSN 5915-01-210-7153
NSN 5895-00-456-0830
NSN 6150-01-257-2490
NSN 5990-01-318-3238
NSN 6645-00-664-4665
NSN 6645-01-210-5649
NSN 6645-01-448-6740
NSN 5905-01-370-6323
NSN 5999-00-899-4809
NSN 5920-01-519-4763