Upgrade your fishing experience with precise water temperature and boat speed readings that help you dial in the perfect trolling speed and locate fish-holding zones. This transom-mounted sensor paddles effortlessly through the water, delivering reliable data straight to your Humminbird display for smarter decisions on the water.

Why Anglers Rely on Accurate Temp and Speed Data

Water temperature swings can make or break a fishing trip—too warm, and baitfish scatter; too cool, and bass go dormant. Pair that with knowing your exact speed over ground, and you avoid overrunning structure or dragging lures too slowly. This sensor shines in freshwater pursuits like walleye trolling or bass chasing in rivers, where every knot counts. Its paddle wheel design minimizes drag while capturing speeds from idle cruising up to highway-on-the-lake paces, all without the guesswork of GPS-only estimates.

Key Features Tailored for Everyday Boating

• Broad Temperature Coverage: Tracks from 25°F to 99.9°F, capturing everything from chilly spring opener bites to scorching summer thermoclines.
• Versatile Speed Range: Measures 2-75 MPH, ideal for slow drifts over weedlines or high-speed runs to the next hotspot.
• Rugged Transom Design: Mounts securely on your boat's stern with a 20-foot cable for flexible routing away from engine noise.
• Proven Durability: Built to withstand splashes, vibrations, and freshwater exposure, backed by a one-year limited warranty.

Seamless Installation Tips for Quick Setup

Mounting is straightforward: Position the sensor 1/8 to 1/4 inch below the hull bottom for optimal paddle submersion, ensuring clear water flow. Drill minimal holes, seal with marine silicone, and route the cable through existing gunwale conduits to keep your deck tidy. For select Helix and other series, grab the matching AS T Y adapter cable to bridge the connection effortlessly. Test in shallow water first—calibrate speed against landmarks to fine-tune accuracy. Most setups take under an hour, getting you back to fishing faster.

Perfect Match for Your Humminbird Setup

Engineered for seamless integration with popular current models like Helix 10, 12, 5, 7, 9 series, and Solix 12 and 15 units. It also plays nice with legacy favorites including 1100, 500, 600, 700, 800, 900 series, and Onix systems. Check your unit's networking options to confirm—many overlay speed and temp right on your sonar screen for at-a-glance intel.

Maintenance for Long-Term Reliability

Keep it performing like new by rinsing with fresh water after every outing to flush debris from the paddle wheel. Inspect the wheel monthly for nicks or fouling—gently clean with a soft brush and mild soap. Store dry during off-seasons to prevent corrosion. These simple habits extend its life, saving you downtime on prime fishing days.

California Proposition 65 Warning: This product may contain chemicals like lead, known to the State of California to cause cancer, birth defects, or reproductive harm.