Raymarine P120-ST800 Thru-Hull Speed & Temp Transducer

Enhance Your Boating Precision with the Raymarine P120-ST800

Imagine slicing through choppy waters with pinpoint accuracy on your boat's speed and water temperature readings. The Raymarine P120-ST800 thru-hull transducer delivers just that, blending low-profile design with robust performance tailored for serious mariners. Mounted directly through your hull, this sensor captures real-time speed-over-water data and temperature shifts, feeding vital info straight into your Raymarine network for smarter navigation and fishing decisions.

Unlike bulkier alternatives, its streamlined plastic housing minimizes drag while handling the relentless pounding of open seas. Boat owners rave about its reliability during long offshore runs, where every knot and degree counts for safety and strategy.

Key Specifications That Stand Out

• Thru-Hull Mounting: Securely installs through the hull for direct water contact and optimal readings.
• Deadrise Compatibility: Works seamlessly on hulls with 0 to 8 degrees of deadrise, fitting a wide range of vessels from sportfishers to cruising yachts.
• Cable Setup: Comes with a 30-foot cable and an included Y-cable, simplifying integration into compatible Raymarine setups.
• Pin Configuration: 8-pin design ensures stable, high-quality signal transmission.
• Hull Versatility: Ideal for fiberglass and metal hulls, providing consistent performance across materials.

Performance You Can Trust in Tough Conditions

Crafted for marine environments that test limits, the P120-ST800 thrives where others falter. Its rugged construction shrugs off corrosion, impacts, and constant submersion, backed by proven durability in racing circuits and commercial fleets. Speed accuracy shines at both low planing speeds for docking finesse and high velocities for performance logging.

Temperature sensing adds another layer, helping anglers spot thermoclines or captains monitor engine cooling water indirectly. Integrate it with multifunction displays, and you'll unlock layered data overlays—like speed logs tied to charts—for a fuller picture of your vessel's behavior.

Streamlined Installation for Hands-On Boaters

Setting up the P120-ST800 keeps things straightforward without needing a full yard overhaul. Select a spot forward of the prop and keel, away from strays or turbulence, then drill precisely for the thru-hull fit. The low-profile shape hugs the hull line, reducing vulnerability to floating debris. Pair it with the Y-cable for quick network addition, and calibrate via your Raymarine instruments for tailored accuracy. Pro tip: Fair the housing with marine sealant for a watertight bond that endures seasons of abuse.

Long-Term Reliability and Maintenance Insights

Raymarine's engineering emphasizes longevity, so expect years of service with minimal intervention. Routine checks involve wiping the paddlewheel clean of marine growth during haul-outs—use a soft brush and non-abrasive cleaner to preserve sensitivity. In bio-fouling heavy areas, consider anti-fouling paints around the thru-hull to keep readings crisp. This sensor's design cuts down on common failures like air entrapment or fouling, keeping your data flowing uninterrupted.

Why Mariners Choose the P120-ST800 Over Others

In a sea of transducers, the P120-ST800 rises above with its balance of sensitivity, simplicity, and seaworthiness. It outperforms entry-level paddles in turbulent wakes, delivering smoother speed traces for autopilot confidence. For fishing enthusiasts, the temp data pairs perfectly with sonar, revealing bait balls hidden by surface noise. It's not just a sensor; it's an upgrade that sharpens your edge on the water.