Clever New Water-In-Fuel Detection And Alert System

WIF-Pro senses and alerts to water accumulation in your boat’s fuel-water separator before it can overwhelm the filter.

Marine fuel‑water separator with a clear collection bowl showing water accumulation, used to prevent fuel contamination in boat engines

Water-contaminated fuel is a leading cause of engine malfunction – but it’s also one of the most preventable. Water separating fuel filters work great, unless their collection bowls fill and they cease to work, allowing water to pass through and directly into your engine(s). The WIF-Pro Water-in-Fuel Detection System solves this problem by sensing water accumulation before it can overwhelm the filter. Check out how it works with this video:

Made specifically for Parker/Racor Spin-On Series fuel/water separators with clear bowls (Parker/Racor Turbine Series for diesel applications), the WIF-Pro system uses an externally mounted sensor ring and visual indicators inside the bowl to trigger an alarm once the water reaches a critical level. Once triggered, the helm or below-console control panel sounds a 95db alarm, flashes LED lights, and displays an alert on your MFD if an active NMEA network is present.

WIF‑Pro water‑in‑fuel monitor control panel showing warning light, port and starboard indicators, and sensor connections

The display layout is simple to quickly understand.

The kit comes with a handy drip-free drain bottle that allows one-handed draining of the filter bowl to reset the system and continue boating. The system is easy to install for the average DIY boater. $699

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Published: February 2026

Author

Mike Longman

Contributing Editor, BoatUS Magazine

Mike is a lifelong waterman who grew up surfing, diving, and fishing on Florida’s east coast. After graduating from the University of Florida, he and his brother bought and refit a 24-foot shoal draft cruising sailboat, which they sailed extensively throughout the Florida Keys. A passion for boat restoration ensued, with the latest being a 22-foot center-console he fishes out of Sebastian Inlet. With 15 years working in the marine industry, including mechanical, marketing, and communications positions at leading companies, Mike leverages his diverse background to distill complex topics into entertaining and encouraging stories that resonate with boaters of all experience levels.