Raymarine i40 Depth Display System w/Transom Mount Transducer

Description

The Raymarine i40 Depth System with transom transducer is a compact depth package for small cruisers, day boats, tenders, and sailing boats that need a clear bottom reading at the helm. Its simple segmented display avoids tying up a larger chartplotter page, while the included P37 transom-mount sensor keeps installation straightforward on boats where a through-hull fitting is not preferred.

The display runs from a 12V supply and draws only 35-50mA, so it adds very little load to a small boat’s electrical system. The P37 transducer sends depth data to the i40, while SeaTalk carries the information to compatible Raymarine instruments. SeaTalkng connection is available through a converter. This is a depth instrument rather than a fishfinder; it does not provide side imaging, charts, GPS, or detailed sonar views.

Key Features

• Segmented LCD with backlight – Provides a simple depth reading that is easy to check underway.
• P37 transom-mount transducer included – Avoids the need to drill a through-hull opening.
• SeaTalk and SeaTalkng compatibility – Connects the depth display to compatible Raymarine networks.
• 35-50mA power draw – Keeps the instrument’s electrical demand low.
• IPX6 protection – Suits exposed instrument-panel mounting.

Who Is This For?

This compact Raymarine depth system suits small cruisers, tenders, day boats, and boats where a transom-mounted sensor is easier than a through-hull installation. It is not ideal for buyers needing charts, speed, temperature, or imaging sonar; the package is dedicated to depth.

Compatibility

Confirmed components include the P37 transom-mount depth transducer, SeaTalk, and SeaTalkng through a converter. The supplied information does not identify direct Garmin, B&G, Simrad, NMEA 2000, NMEA 0183, radar, or autopilot compatibility. No named incompatible system was provided; verify the Raymarine network and transom mounting requirements before installation.

Technical Specifications

• Brand: Raymarine
• Model: i40 Depth System with transom transducer, E70143
• Display: Segmented LCD with backlight
• Transducer: P37 transom mount included
• Networking: SeaTalk and SeaTalkng via converter
• Port: One SeaTalk
• Voltage: 12V DC, 10-16V range
• Power draw: 35-50mA
• Water rating: IPX6
• Weight: 0.23kg / 0.5lbs

Warranty & Support

Raymarine provides a 2-year standard warranty, or 3 years with registration as listed in the supplied specifications. Warranty exclusions and service procedures were not provided.

The i40 transom system is the easy-install choice compared with the through-hull version. You get the same basic depth display without cutting a 51mm hull opening, which suits smaller boats and trailerable craft. The trade-off is that a transom sensor is more exposed to impact and turbulence. Choose it when the hull and mounting position make transom installation practical.