Precision Fuel Monitoring for Your Boat's Gasoline Engine

Imagine heading out on the water with complete confidence in your fuel management. No more guessing how much gas you've burned on a long fishing trip or worrying about running low mid-adventure. The Lowrance Fuel Flow Sensor delivers real-time insights into your engine's fuel consumption, helping you plan smarter and fish longer. Designed exclusively for gasoline-powered outboards, this sensor slips seamlessly into your NMEA 2000 network, feeding data straight to your Lowrance display.

Whether you're chasing trophy bass or cruising coastal waters, accurate fuel tracking means fewer stops at the dock and more time enjoying the ride. It measures flow rates optimized for everyday boating speeds, capturing everything from idle to wide-open throttle without missing a drop.

Key Capabilities That Set It Apart

• Real-Time Fuel Flow: See your current consumption rate instantly, so you can adjust throttle for optimal efficiency.
• Tank Fuel Used: Monitor total usage from your main tank to avoid surprises.
• Trip Fuel Used: Reset for each outing and track precisely what a single run costs you.
• Seasonal Fuel Used: Log data over months to spot trends, like how weather or load affects your burn rate.
• Fuel Economy Calculations: Pair it with a GPS speed source or paddlewheel sensor on the network for MPG or GPH stats that help fine-tune your setup.

Built tough for marine environments, it handles flows from as low as 0.6 gallons per hour up to 45 GPH, covering most recreational boats. And with minimal back pressure (just 0.5 PSI at 20 GPH), it won't strain your fuel system.

Effortless Integration and Setup

Getting this sensor online is straightforward, even if you're not a wiring wizard. The included 10-foot cable reaches most engine bays, and the T-connector plugs right into your existing NMEA 2000 backbone—no cutting or splicing required. It fits standard 3/8-inch inner diameter fuel lines, secured with the two provided 1-inch hose clamps.

Pro Installation Tips

1. Mount it high—above your fuel tank's maximum fill level—to prevent siphoning or air pockets.
2. Place it after the fuel filter and any splitters for the cleanest, most accurate readings.
3. Drill a 22mm (7/8-inch) hole through bulkheads if routing the cable tight; seal it well against spray.
4. One sensor per engine, supporting up to three on the network for multi-motor rigs.

Gasoline only, folks—no diesel compatibility or setups with return lines. Test your flow post-install by running the engine at idle and verifying data on your HDS, LMF-400, or compatible unit.

Why Boaters Rely on This Sensor

In a world of vague dash gauges, this delivers pinpoint data that pays for itself in saved fuel and peace of mind. Tournament anglers use it to dial in lean runs between spots; cruisers track seasonal efficiency for maintenance planning. Backed by a 1-year warranty, it's a smart upgrade for any Lowrance-equipped vessel chasing reliability on the water.

"Finally, numbers I can trust—instead of estimating, I know exactly when to top off."

—A satisfied offshore captain

Frequently Asked Questions