Motors Transmitters Weather Controlled Radio Receivers Centralization Sensors Accessories Centralization relay module for 1 motor with mechanical limit switch X51 Centralization relay module in watertight box for 1 motor with mechanical limit switch X51S Centralization relay module in watertight box for 2 motors with mechanical limit switch X52 Centralization relay module in watertight box for 4 motors with mechanical limit switch X54 Centralization module with main voltage inputs for motors with mechanical limit switch X60 eGO Inputs duplicating module Center eGO