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 5975-01-592-8899
NSN 6130-00-754-2950
NSN 6610-01-383-7419
NSN 6105-00-456-1433
NSN 5915-00-880-2193
NSN 6685-01-029-3773
NSN 5975-00-166-0092
NSN 6610-01-084-2258
NSN 6645-01-455-1293
NSN 5920-00-431-5474
NSN 7035-00-205-8739
NSN 6620-01-286-1374