A tachometer that consists of indicator(s), generating transmitter(s), and the necessary connections.
NSN 5930-01-435-6225
NSN 5925-01-245-3786
NSN 6145-01-515-3916
NSN 5950-00-103-7513
NSN 5835-00-198-4936
NSN 5965-00-866-3371
NSN 5910-00-320-8302
NSN 6150-01-619-4318
NSN 7035-01-301-6325
NSN 5960-00-962-5391
NSN 5925-01-633-9434
NSN 4140-01-577-8007