Raymarine TM Triducer f/ST40 w/10M Cable

Upgrade your boating experience with the Raymarine P66 transom mount triducer, a reliable all-in-one sensor that delivers precise depth, speed, and temperature readings right from your outboard or I/O powerboat's stern. Designed for real-world marine conditions, this hydrodynamic transducer cuts through water turbulence thanks to its sleek, rounded nose, ensuring consistent data even at higher speeds. Whether you're navigating shallow bays, tracking fish in deeper waters, or monitoring your vessel's performance, this unit provides the accuracy you need to stay safe and informed on the water.

Why Boaters Trust the P66 Transom Mount Design

Boat owners rave about the P66's rugged build and user-friendly installation. The transom bracket features a clever kick-up mechanism that pivots on impact, protecting the sensor from underwater obstacles like logs or rocks—common hazards for trailered boats. No need for permanent modifications; simply slide the sensor into the bracket for quick deployment or removal without tools, making seasonal storage or maintenance a breeze.

Ideal for hulls with deadrise angles from 2° to 22°, it adapts seamlessly to most planing hulls made of fiberglass, metal, or wood. The dual-frequency capability—50 kHz for broad coverage up to 1200 feet and 200 kHz for sharp, detailed shallow-water readings—lets you switch modes based on your fishing or cruising needs, while the integrated paddlewheel speed log and temperature probe give you a complete picture of your surroundings.

Seamless Integration with Raymarine Instruments

This triducer pairs effortlessly with popular Raymarine analog displays, sending clean signals via ISO spade connectors for plug-and-play simplicity. It's a go-to choice for upgrading older setups, delivering reliable data to enhance your onboard electronics without complex wiring hassles. The generous 30-foot cable provides ample reach from the transom to your helm, reducing the risk of signal loss in larger vessels.

• Proven Performance: Trusted by anglers, cruisers, and commercial operators for its durability in saltwater environments.
• Beam Angles Optimized: 45° at 50 kHz for wide-area scanning; 12° at 200 kHz for pinpoint precision.
• Low Maintenance: Plastic housing resists fouling, and the removable design simplifies cleaning.

Installation Tips for Peak Performance

Position the transducer 1/3 aft from the transom's centerline, parallel to the waterline at speed, for optimal readings. Use marine sealant on mounting screws to prevent leaks, and fair the hull surface if needed for a flush fit. Test in calm water post-install to calibrate speed and depth—many users report immediate improvements in log accuracy over stock factory sensors. For best results, avoid mounting directly behind strakes or trim tabs that could cause air entrainment.

Real-World Applications and Benefits

From weekend warriors plotting coastal routes to serious offshore anglers chasing structure, the P66 triducer elevates situational awareness. Accurate speed-over-ground data helps optimize fuel efficiency, while temperature trends reveal thermoclines for better fishing spots. Its analog output ensures compatibility with a wide range of third-party instruments, making it a versatile upgrade that future-proofs your boat's electronics.