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 6220-00-075-8939
NSN 4140-01-125-5187
NSN 6645-01-359-7875
NSN 5905-00-960-8451
NSN 5925-00-170-4090
NSN 5950-00-465-3694
NSN 5990-01-065-0492
NSN 6620-00-925-8435
NSN 6685-01-105-7439
NSN 5930-00-109-0952
NSN 5985-00-108-2372
NSN 5999-00-190-6955