Garmin GFS™ 10 Fuel Sensor for Gas Engines Only

Unlock Precise Fuel Management for Your Boating Adventures

Imagine heading out on the water with confidence, knowing exactly how much fuel you're using and how far you can go before refueling. The Garmin GFS 10 fuel sensor makes this a reality by integrating seamlessly with your Garmin chartplotter. Designed exclusively for gas engines, this sensor monitors fuel flow in real-time, helping you fine-tune throttle settings for better efficiency and longer trips. Boaters often report noticeable improvements in fuel economy after installation, turning guesswork into data-driven decisions.

What sets it apart? While many sensors only track flow, the GFS 10 also taps into your existing analog fuel gauge or resistive tank sensor for comprehensive level monitoring. Data streams effortlessly through Garmin's CANet or the widely used NMEA 2000 network, displaying fuel rate, economy, trip consumption, and remaining range right on your screen.

Technical Specifications at a Glance

• Fitting Type: 3/8-inch barbed for straightforward plumbing into your fuel line.
• Flow Rate Range: Handles from 2 gallons per hour (GPH) minimum up to 50 GPH maximum—perfect for most outboard gas engines.
• Pressure Tolerance: Rated for 0.5 PSI at 20 GPH and 1.0 PSI at 40 GPH, ensuring reliability under typical operating conditions.
• Power Requirements: Operates on 10-22 volts, compatible with standard marine 12V systems.
• Certifications: Fire-resistant design that meets U.S. Coast Guard standards for safety on the water.

Everything you need comes in the box: mounting hardware, a built-in fuel filter to protect your engine, reusable stainless steel hose clamps, and an NMEA 2000 to CANet adapter cable for easy connectivity.

Key Features That Deliver Real-World Value

• Real-time fuel flow tracking optimizes your boat's performance and reduces waste.
• Fuel level integration provides a complete picture without extra hardware.
• Compatible with Garmin CANet and NMEA 2000 networks for plug-and-play setup on supported chartplotters.
• Rugged, marine-grade construction withstands harsh saltwater environments.
• Backed by a limited 1-year warranty for peace of mind.

Compatibility and Important Considerations

This sensor shines with carbureted gas outboards but skips diesel engines entirely and isn't suited for fuel-injected gas setups with return lines. For older GPSMAP 4xx and 5xx series chartplotters, you'll need a separate CANet kit to finalize the connection. Always verify your engine type to ensure a smooth fit—it's tailored for straightforward installs on compatible systems.

Effortless Installation for DIY Boaters

Setting up the GFS 10 is straightforward for those familiar with basic marine plumbing. Inline installation between your fuel tank and engine involves cutting the fuel line, inserting the sensor with its barbed fittings, and securing with the included clamps and filter. Wire it to power, connect via NMEA 2000 or CANet, and configure through your chartplotter's menu. Most users complete it in under an hour, gaining instant access to fuel insights that enhance every outing.

Pro tip: Position the sensor horizontally or slightly downward for accurate readings, and prime the system carefully to avoid air bubbles.

Why Boaters Trust the GFS 10 for Superior Fuel Insights

Unlike basic flow meters, this sensor delivers actionable data like gallons per hour, miles per gallon, and estimated range—vital for planning multi-day cruises or fishing trips. Integrate it with Garmin's ecosystem, and you'll unlock advanced features such as trip logging and engine sync. It's not just about saving fuel; it's about smarter boating that keeps you on the water longer.