Raymarine CPT-S CHIRP transducer – accurate depth reading without drilling a hole in the hull!
The Raymarine CPT-S CHIRP transom-mount transducer offers exceptionally accurate depth readings without the need to drill a hole in the hull. It's an ideal solution for boats with GRP (glass-reinforced plastic) hulls.
The set includes a housing (well) which is glued to the inside of the hull and filled with frost-resistant liquid. The liquid improves the propagation of sound waves through the hull and ensures accurate measurement results. The smart design of the transducer allows it to be installed at various angles (0–25°) on the boat's hull, making the transducer universally suitable for many boats. The transducer must be installed on a solid laminate part of the boat's hull, as a honeycomb structure will excessively dampen the signal, leading to poor results.
Key features
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Easy installation – no drilling required
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CHIRP technology provides accurate depth information up to 183 metres
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Installation angle 0–25° – suitable for various boat shapes
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Suitable for GRP hull boats
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9-pin connector connection, 6 m cable
Technical data
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Frequencies: 170–230 kHz (High CHIRP)
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Maximum depth: 183 m / 600 ft
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Installation angles: 0°, 12° or 20°
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Suitable body material: GRP (glass-reinforced plastic)
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Main material: Plastic (urethane)
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Cable length: 6 metres
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Connection: 9-pin plug
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Maximum body thickness: 28 mm
Compatibility
The Raymarine CPT-S CHIRP transducer is compatible with the following Raymarine chartplotters.
(An adapter cable is required to connect to newer plotters)
- Raymarine a68
- Raymarine a78
- Raymarine a98
- Raymarine a128
- Raymarine Element S
- Raymarine Element HV (optional adapter cable required: A80559)
- Raymarine AXIOM+ RV (optional adapter cable required: A80490)
- Raymarine AXIOM DV
- Raymarine AXIOM RV (optional adapter cable required: A80490)
- Raymarine AXIOM2 Pro S (requires optional adapter cable: A80490)
- Raymarine AXIOM2 Pro RVM (optional adapter cable required: A80490)
- Raymarine AXIOM Pro S (optional adapter cable required: A80490)
- Raymarine AXIOM Pro RVX (requires optional adapter cable: A80490)
- Raymarine CP100 Sonar Module E70204
Instructions:
Download CPT-S sensor Installation guide.








