Siren Marine Shore Power Sensor Plug Wired. This Security Product from Siren Marine has an easy connection and will help prevent mysterious outages that can make your boat uncomfortable and inconvenient. When your boat is on the dock you won't want to fiddle with this sensor as it will alert you if the shore power is lost. With the Siren Marine Wired In-Dock Sensor Plug you will know when the shore power is on and off so you can make the necessary adjustments to prevent an emergency. Specifications for Siren Marine Wired Shore Power Sensor Plug: Manufacturer: Siren Marine Color: Black Package Contents: Siren Marine Wired Shore Power Sensor Plug Siren Marine SM-ACC-SHOR: Shore Power Sensor Plug Wired