The Rain Bird F46105 is a Pro 240 Station 2-Wire Controller 120V. Rain Bird’s newest 2-Wire Controller has many powerful new features like the Integrated Valve Module that stays in constant communication with the controller to provide efficient irrigation and advanced diagnostics. The ESP-LXIVM supports up to 60 stations standard or 240 stations with LX-IVM Pro. Up to four 2-Wire paths can be connected, plus flow sensing and advanced flow management tools that set new industry standards for state-of-the art water management.