Motion Sensors are adaptable to both new homes and existing homes. On new homes, they are hard-wired by low voltage wires to specific locations that require hot water use. For existing homes, wireless motion sensors are available that will send signals up to 100 feet to activate the D'MAND System. Motion Sensors are designed not to allow activation of a subject under 4 feet high or 40 pounds of weight. Product Application:• To be used with the Metlund D'MAND Systems without wireless accessoriesProduct Function:• Activates the Metlund D'MAND System pumpsPatented custom design for the Metlund D'MAND electronic controller works with all S-Series Systems._______________________________________________________ HELP » Contact Customer Support• Toll-Free help line offering product info and ordering support• Online e-mail technical and installation support _______________________________________________________ Delivery Information: Please allow 2 to 7 business days for orders to be processed, plus standard transportation delivery time.