The second-generation Power Watchdog introduces an innovative new design that sets it apart from any other surge protector on the market. The Power Watchdog offers enhanced weather protection, improved security, and unmatched user-friendliness. The addition of built-in WiFi, which complements its existing Bluetooth technology. This integration allows RVers to stay connected and in control from anywhere in the world without the need for extra hardware. Patented, replaceable surge module. In the event of severe power spikes, users can simply replace the module instead of the entire unit.