Easy Vessel Switch (EVS) - 2.2 : IgorZ : Free Download, Borrow, and Streaming : Internet Archive
12V Anchor Remote Windlass Switch Boat Sail Controller for Marine, Yachat, Boat, Easy to Install - Walmart.com
Dwyer Instruments - The Dwyer Instruments, Inc. Tuning Fork Level Switch, Series TFLS, is ideal for level control of powders and fine grained solids. It is easy to use, with no calibration
More commercial ships utilize wind technologies to cut emissions - DNV