A tachometer that consists of indicator(s), generating transmitter(s), and the necessary connections.
NSN 5935-00-312-2576
NSN 5935-00-845-8617
NSN 6650-01-386-5787
NSN 2925-00-134-4827
NSN 5998-01-020-7848
NSN 5855-01-241-1054
NSN 6240-01-176-4359
NSN 7035-01-541-0554
NSN 6320-00-925-0558
NSN 6135-00-927-5848
NSN 7035-01-369-1445
NSN 6620-00-079-0311