CPT-S CHIRP 12° Plastic Thru-Hull Transducer

The CPT-S 12° Plastic Thru-Hull Transducer brings high-performance CHIRP sonar technology in a lightweight, corrosion-proof housing. Featuring a 12° tilted element, this transducer is engineered for boats with a moderate V-hull, typically about 7° to 17° of deadrise. The internal tilt ensures that the transducer’s 25° conical sonar beam points straight down despite the angled mounting surface, resulting in optimal sonar returns without the need for an external fairing block. This makes installation simpler and maintains a nearly flush fit even on sloped hull bottoms.

As a member of Raymarine’s CPT-S family, the 12° plastic model delivers wide-spectrum CHIRP sonar coverage with a depth range up to 275 m (~900 ft). It provides both depth and temperature data thanks to its built-in sensor, which is invaluable for anglers tracking water temperature breaks or for general environmental awareness. The transducer’s low-profile urethane design minimizes drag and turbulence, promoting clear readings at speed. The durable plastic housing is also safe to use on all hull materials, including fiberglass and metal hulls, since it electrically isolates the transducer (no galvanic corrosion issues on aluminum hulls).

Key advantages:

• Tilted for V-Hulls: The 12° internal tilt is specifically designed to compensate for common hull deadrise angles. This means on a hull with, for example, a 10° V-shape, the CPT-S’s element will be nearly vertical, ensuring your sonar beam penetrates directly beneath the boat for accurate echo returns. It’s an ideal solution for mid-sized powerboats or RIBs with moderate V-bottoms where a standard 0° transducer would angle off and lose performance.
• High-Definition CHIRP Imaging: Operating across a range of frequencies, the CPT-S 12° transducer produces exceptionally clear sonar images. The 25° beam provides a nice balance between coverage and detail – you’ll see a broad view of the water column and structure, while still detecting individual fish targets. Bottom contours are displayed with clarity, aiding in distinguishing between hard and soft bottoms and spotting structure like rocks or wrecks.
• Lightweight, Robust Construction: The transducer’s housing is made of marine-grade urethane plastic, which is both robust and lightweight. It will not corrode, making it ideal for use on aluminium or steel hulls. The plastic also absorbs less sonar energy than metal, ensuring maximum signal strength from the CHIRP transducer for a strong return signal.
• Streamlined Installation: With its flush, low-profile build, the CPT-S 12° installs through the hull without protruding parts that could snag water or fishing lines. No fairing block is required – simply install it in a properly angled hole, seal it, and bolt it in place. The transducer includes a 10 m cable to reach your helm electronics, and the installation can typically be completed in a short time by a marine technician or experienced DIY boater.
• Versatile Compatibility: This transducer is plug-and-play with Raymarine’s Element series CHIRP sonar units. Additionally, it can be used with Axiom series displays and Axiom Pro S/RVX when paired with the optional adaptor cable (Raymarine A80490), which converts the 9-pin transducer plug to the 25-pin format. This flexibility allows you to leverage the CPT-S 12° across different Raymarine systems or when upgrading your electronics, preserving your investment.

Whether you’re outfitting a fishing boat for coastal trolling or equipping a cruising vessel with reliable depth-sounding, the Raymarine CPT-S 12° Plastic Thru-Hull Transducer is a smart choice. It delivers professional-grade sonar performance in a user-friendly package, giving you crisp fish arches and clear bottom images without complicated installation. Trust this transducer to enhance your situational awareness on the water, helping you find fish, avoid hazards, and enjoy your time at sea with greater confidence in what lies below.