Raymarine CPT-S Thru-Hull - High Chirp - Plastic - 0°

Upgrade your sailboat's sonar capabilities with this reliable thru-hull transducer designed for clear, detailed underwater imaging. Engineered for vessels with flat hull bottoms, it delivers high CHIRP performance that helps you spot fish, track structure, and monitor depth effortlessly—even in challenging conditions. Sailors appreciate its straightforward setup and consistent results, making it a go-to choice for weekend cruisers and long-haul adventurers alike.

Superior High CHIRP Sonar for Precision Fishing

High CHIRP technology sweeps across a broad frequency range, producing sharper images than traditional fixed-frequency sonar. This means better target separation, so you can distinguish between baitfish schools and larger game fish with ease. At depths up to 900 feet, it excels in revealing bottom contours, wrecks, and drop-offs that hold trophy catches. The 25-degree beamwidth strikes a perfect balance—wide enough for coverage, focused enough for detail—ideal for navigating coastal waters or offshore runs.

Built Tough for Marine Environments

Crafted from durable urethane, this plastic thru-hull unit withstands constant water exposure without cracking or delaminating. Its 0-degree angled element mounts flush on hulls with 0-5 degree deadrise, ensuring minimal drag and optimal signal transmission. No more guessing games with hull angle mismatches; it's tailored for sailboats where hull lines stay true and performance matters.

Seamless Integration with Your Raymarine Setup

Pair it effortlessly with compatible CP100 modules or Axiom MFDs and Element series displays running the latest software updates. Once connected, access crisp sonar overlays right on your chartplotter screen. Fish history and depth data log automatically, letting you review past trips and refine your hotspots. It's a plug-and-play solution that elevates your existing electronics without a full system overhaul.

Installation Tips for Peak Performance

• Site Selection: Choose a spot forward of the propeller, away from strakes or thru-hulls that could cause turbulence. Fair the housing to the hull deadrise for dead-on readings.
• Tools Needed: Marine sealant, hole saw matching the 2-inch mount, and cable ties for clean routing.
• Pro Tip: Test in shallow water post-install to calibrate gain and verify no air bubbles interfere with the signal.
• Sailboat Specific: Its low-profile design hugs the hull, reducing fouling risks in keel-heavy boats.

Expect reliable operation year-round, from summer tournaments to winter scouting. Regular hull cleaning keeps the face sparkling, maximizing return signals.

Real-World Advantages Over Standard Transducers

Unlike basic single-frequency units, this CHIRP transducer adapts to water conditions—strong in murky bays or clear blue water. Sailors report fewer false readings around kelp beds or thermoclines, thanks to the swept frequencies punching through noise. It's not just about seeing deeper; it's about seeing smarter, saving fuel on fruitless searches and boosting your catch rate.

Care and Maintenance for Longevity

Wipe down after every outing with fresh water to remove salt buildup. Inspect the cable for chafe where it exits the hull. In storage, keep it dry and protected from UV. With proper care, it delivers seasons of trouble-free service, proving its value far beyond the initial setup.