Wired Shore Power Sensor PlugThe Shore Power Sensor Plug allows boaters to monitor system-critical shore power from anywhere. Receive an alert in the event that shore power is lost and avoid costly system shutdown. The Shore Power Sensor Plug is ideal for larger vessels relying on external power sources to run critical systems while on the dock.Specifications:Dimensions: 3ft (wire) 2.5×1.5in (body)Standard AC to DC adapter, 3V DC outputPlugs into AC outletWorks with MTC and Siren 3 Pro