A tachometer that consists of indicator(s), generating transmitter(s), and the necessary connections.
NSN 5835-00-196-9771
NSN 6135-01-128-5358
NSN 5975-01-617-1107
NSN 6145-01-484-8735
NSN 4140-00-133-7986
NSN 6135-00-603-4859
NSN 6650-01-573-7165
NSN 6650-01-558-4713
NSN 5835-00-155-1379
NSN 6650-00-224-3223
NSN 4140-00-757-5270
NSN 5895-01-634-0630