Crossing Signals w/Flashers

Make sure your highways are safe for motorists with a set of these at every busy crossing. Can be operated manually or with automatic systems, like the Train detection Kit (#535-400, sold separately). The flasher circuit can be powered by two 9V batteries or the Power Supply Kit (#535-425, sold separately) and up to six signals can be operated at one time. Signals should be used only with the approved flasher.