Raymarine CPT-70 Plastic Thru-Hull Transducer, For Dragonfly 4/5/7PRO and Wi-Fish, CHIRP, DownVision, Depth/Temperature, Fairing Block

Overview

The Raymarine A80278 is a CPT-70 plastic thru-hull transducer for Raymarine Dragonfly sonar systems, combining CHIRP sonar, CHIRP DownVision, depth, and water temperature in one through-hull installation. It is made for boats where a fixed hull-mounted transducer is preferred over a transom mount, especially when clean sonar readings and a neat below-waterline installation matter.

The CPT-70 uses 2 CHIRP channels, with one traditional sonar channel and one DownVision channel. Its sonar beam is listed at 25° and 60°, with DownVision using a wide port-to-starboard fan beam and a thin fore-and-aft beam for structure imaging. Depth range is 0.6 m to 183 m, or 2 ft to 600 ft, with the sonar channel able to reach farther in some conditions.

The transducer has a urethane body, a 10 m cable, and a housing length of 210.8 mm with a maximum height of 131.8 mm. It carries IPx6 and IPx7 waterproof ratings and is specified for fiberglass, wood, and metal hulls.

Key features

• Through-hull CPT-70 transducer for second-generation Raymarine Dragonfly 4, Dragonfly 5, Dragonfly 7PRO, and Wi-Fish systems.
• CHIRP sonar and CHIRP DownVision give both fishfinder returns and structure-style imaging from the same hull fitting.
• Records depth and water temperature, so one transducer can feed the core bottom-reading information used for fishing and navigation awareness.
• Depth range runs from 0.6 m to 183 m, or 2 ft to 600 ft, with additional fishfinder depth possible in suitable water conditions.
• 25° and 60° beam widths, with DownVision coverage that is wide across the boat and narrow fore to aft.
• Urethane thru-hull body with IPx6 and IPx7 waterproof ratings for exposed marine installation below the waterline.
• 10 m cable gives useful routing length from the hull location to the display or sonar connection point.
• Supplied dead rise block helps the installer set the transducer angle during thru-hull mounting.

Compatibility and fit

This transducer is for Raymarine Dragonfly and Wi-Fish sonar setups, including second-generation Dragonfly 4, 5, and 7PRO units. Systems with a green locking collar require the A80332 adapter cable, so the existing display connector should be checked before installation.

The CPT-70 is specified for fiberglass, wood, and metal hull materials. Because it is a thru-hull transducer, the installation location should be chosen where the face of the transducer can stay in clean water flow and away from turbulence caused by strakes, intakes, steps, or the propeller stream.

Installation and setup

A thru-hull installation requires drilling the hull and bedding the fitting correctly, so it is a better match for permanent installations than quick seasonal swaps. The dead rise block and securing nut are included, allowing the transducer to be mounted through the hull with the face aligned for sonar coverage.

On trailer boats, fishing boats, and small cruisers using Dragonfly electronics, this style of mount keeps the transducer protected and avoids the exposed bracketry of a transom installation. Cable routing should allow a dry, supported path back to the display, with service slack left where the cable enters the electronics area.

Sonar performance on board

The traditional CHIRP sonar channel is the main channel for bottom tracking and fish targets, while CHIRP DownVision adds a more detailed view of structure, bottom shape, and objects beneath the boat. That combination is useful for anglers working reefs, ledges, wrecks, or inshore structure, and for cruisers who want a clear view of depth changes in familiar or unfamiliar water.

Actual depth performance depends on water conditions, bottom type, installation quality, and boat speed. A clean thru-hull position helps reduce aerated water across the transducer face, which is important when the display is being used while moving between marks or cruising grounds.

What’s included

• Thru-hull plastic transducer
• Dead rise block
• Plastic securing nut
• Documentation

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Many products sold by Apollo Lighting include a manufacturer's warranty covering defects in materials or workmanship. Warranty terms vary by brand, product category, and model, so eligibility, coverage duration, exclusions, and available remedies are determined by the applicable manufacturer. We recommend reviewing the warranty information provided with your product before installation or use, especially for marine electronics, navigation equipment, lighting, electrical systems, pumps, safety equipment, and other specialized marine products.

If you need warranty service, the claim must follow the process established by the manufacturer, authorized service center, or designated warranty provider. You may be asked for proof of purchase, a serial number, product registration, photos, maintenance or installation records, or other documentation. Apollo Lighting does not determine or modify a manufacturer's warranty coverage or final claim decision, but we are happy to help provide purchase information and direct you to the appropriate manufacturer or warranty resource.

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