A tachometer that consists of indicator(s), generating transmitter(s), and the necessary connections.
NSN 6620-01-266-5545
NSN 6620-00-856-9155
NSN 2925-00-753-8598
NSN 6650-00-943-4247
NSN 6620-00-057-2764
NSN 5925-00-617-9927
NSN 5835-00-707-6266
NSN 5975-00-618-0161
NSN 5945-00-362-3265
NSN 4140-00-068-0267
NSN 6240-01-553-0561
NSN 6145-01-358-9979