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 6645-01-365-8020
NSN 6620-00-005-8612
NSN 6650-00-927-3391
NSN 6135-01-175-7311
NSN 2925-00-928-5931
NSN 5965-00-451-0518
NSN 6220-01-386-3810
NSN 6105-00-107-3315
NSN 5925-01-232-7979
NSN 4140-00-856-8115
NSN 7035-01-406-5232
NSN 5985-01-533-7269