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 7035-01-644-5251
NSN 6105-00-195-1273
NSN 5895-01-299-8916
NSN 5998-01-146-9172
NSN 6320-01-236-9562
NSN 5998-00-463-6842
NSN 6645-01-067-4393
NSN 5905-00-949-8199
NSN 6645-01-162-8023
NSN 5895-00-675-8796
NSN 5910-00-186-7342
NSN 6320-01-152-8873