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 5975-01-161-6531
NSN 6620-01-381-6225
NSN 5990-00-740-0249
NSN 6620-01-217-3216
NSN 6320-01-416-9357
NSN 5960-01-507-9112
NSN 2925-01-415-2140
NSN 5855-01-364-1005
NSN 4140-00-327-2820
NSN 5920-01-406-3157
NSN 6320-01-493-4472
NSN 5998-01-369-7530