Blue Guard Innovations’ BG-One is a solid-state bilge pump switch, oil and fuel detector that turns off the bilge pump when oil or fuel is found. It can be installed in 12- or 24-volt battery systems and is designed to source up to 20 amps to power DC-powered bilge pumps. Three operating modes are intended for use in marinas, marine sanctuaries and high seas, and boaters can monitor and control the device via a smartphone app. Price: $219. bluebgi.com
This article originally appeared in the September 2018 issue.