A tachometer that consists of indicator(s), generating transmitter(s), and the necessary connections.
NSN 5990-01-287-9447
NSN 5895-01-501-0891
NSN 6105-01-575-3564
NSN 6150-01-471-2701
NSN 6105-00-216-5813
NSN 5835-01-126-9358
NSN 6685-01-578-9035
NSN 5975-01-328-1503
NSN 5960-01-246-4809
NSN 5999-01-560-1188
NSN 6645-01-241-4300
NSN 5945-00-124-2027