The hub is the central point of communication. The LeakSmart System will continue to work 24/7 even if Internet and power are down ensuring that you will be protected 100% all of the time. If a water leak is detected in your home, the LeakSmart Hub- receives the signals from the LeakSmart sensors placed in your home and directs the LeakSmart Valve to immediately shut off your home's water supply to eliminate the threat of water damage.