A tachometer that consists of indicator(s), generating transmitter(s), and the necessary connections.
NSN 5855-01-609-3732
NSN 5960-00-503-4880
NSN 7035-01-341-9098
NSN 7035-00-861-4654
NSN 5855-01-468-3689
NSN 6105-01-264-1297
NSN 5930-01-277-7188
NSN 5920-00-137-7776
NSN 6320-01-522-0318
NSN 7035-01-098-5474
NSN 6320-01-600-5808
NSN 6105-01-522-1880