The World’s First and only “Smart” RV Surge Protector. The Power Watchdog Smart Surge Protector offers the best possible surge protection for your coach and also has Bluetooth connectivity so you can monitor live park power conditions on your smartphone using our free mobile application. Our new Power Watchdog Smart Surge Protector offers 4800 Joules of the best possible surge protection for your coach and also has Bluetooth connectivity so you can monitor live park power conditions on your smartphone using our free mobile application.