A tachometer that consists of indicator(s), generating transmitter(s), and the necessary connections.
NSN 6240-00-553-8891
NSN 6240-01-354-7103
NSN 6150-00-886-6638
NSN 6150-01-477-8853
NSN 5905-01-285-2006
NSN 6110-01-351-1141
NSN 6610-00-896-4914
NSN 5895-01-509-0350
NSN 5855-01-432-4401
NSN 5855-00-189-6066
NSN 6320-01-198-4024
NSN 6610-00-144-7036