A tachometer that consists of indicator(s), generating transmitter(s), and the necessary connections.
NSN 6320-00-036-3688
NSN 6150-00-723-4618
NSN 5920-00-231-8537
NSN 6135-01-560-8130
NSN 6105-01-154-4145
NSN 6620-00-518-3595
NSN 5930-00-382-7716
NSN 5920-00-100-7219
NSN 5999-01-602-3737
NSN 5945-01-541-3115
NSN 5835-00-946-2656
NSN 5998-01-029-1143