The Shore Power Alarm alerts the driver with an audible alarm and red LED indicator if the vehicle power cable is connected while the vehicle is running. Producing an audible 85 dB alarm, the device will create a clear signal that the cable should be disconnected, preventing costly destruction to property from driving away from an emergency station with the shoreline still attached. Designed for easy installation in vehicle switch panels, it is reverse polarity protected and has a 3 year warranty.