A tachometer that consists of indicator(s), generating transmitter(s), and the necessary connections.
NSN 6645-01-582-3776
NSN 5905-01-437-7023
NSN 5835-00-912-5656
NSN 5835-01-512-4834
NSN 6220-01-432-7629
NSN 5999-00-164-1653
NSN 6130-01-131-2761
NSN 7035-00-529-3128
NSN 6240-01-268-2223
NSN 5990-00-041-1745
NSN 2925-01-111-2927
NSN 5975-01-025-5794