A tachometer that consists of indicator(s), generating transmitter(s), and the necessary connections.
NSN 5996-00-606-9612
NSN 4140-01-502-6496
NSN 5895-01-202-8748
NSN 5835-00-253-3453
NSN 5835-01-281-7281
NSN 6610-01-337-4640
NSN 6650-01-556-6941
NSN 6320-01-473-9024
NSN 5835-01-557-9062
NSN 5910-01-468-5147
NSN 6320-00-270-8222
NSN 6645-01-312-3558