A tachometer that consists of indicator(s), generating transmitter(s), and the necessary connections.
NSN 6320-00-036-3688
NSN 5935-01-633-1831
NSN 6240-01-376-0306
NSN 6610-00-371-5953
NSN 5835-01-328-6626
NSN 5975-00-256-9436
NSN 5999-01-617-7515
NSN 4140-01-381-0099
NSN 6240-01-416-1770
NSN 5985-00-998-5589
NSN 5855-01-537-7059
NSN 6130-01-438-5837