Level Crossing with automatic barriers, lights and sounds. This unit works using sensors which are placed in the accompanying track sections. As the locomotive passes the leading sensor the lights and sound are activated and split seconds later the barriers drop. After the last wagon / coach passes the lagging sensor the barriers go up and the sounds and light stop.The sounds can be changed between three different variants by using the micro switches installed on the base. A great product for any Kato layout.Includes 3 Pin Adaptor.