The Aquascape Smart Pump Receiver Large is required to run the SLD 5000-9000 Adjustable Flow Pond Pump, allowing you to control your pump from anywhere using the Aquascape Smart Control App. The specially designed receiver makes it easy to connect your pump to your smartphone or tablet, allowing for a variety of wireless control functions, including flow adjustment and customized scheduling. Connecting your device to the Aquascape Smart Control App is quick and easy, simply plug in your pump, pair the receiver to your device, and enjoy. The Smart Pump Receiver also includes an integrated control panel with digital numeric display and quick-and-easy flow adjustment. The receiver includes a durable metal housing with a weather-proof, quick-connect fitting for quick and secure setup. A resettable breaker switch located at the bottom of the receiver will shut down to protect the unit when plugged into a defective pump.