Product Application:• To be used with the Metlund D'MAND System pumpsProduct Function:• Activates the system from additional areasNote: this is not an ordinary doorbell button. It has been modified for this application. Requires additional wiring._______________________________________________________ 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.