For installations where Switch Aware is used for the electric hot water switch, we have an optional Switch Aware Relay Kit. It prevents Switch Aware from illuminating and giving you false “I’m On” information if your trailer is plugged into shore power. The Switch Aware Relay Kit includes the relay, four insulated connectors, and instructions. (Wire type is described in instructions, but wire is not included because length depends on individual installation.) Item #DTR-820