Navigate with confidence on the water using the Raymarine i40 Depth Display System paired with a reliable transom mount transducer. This compact powerhouse delivers precise depth readings essential for safe boating, whether you're anchoring in unfamiliar bays, fishing in shallow waters, or cruising coastal routes. Its sleek design blends seamlessly into any helm setup, offering professional-grade performance without the bulk.

Boaters appreciate how this system cuts through the guesswork. Imagine spotting sudden depth changes before they become hazards or setting custom alarms to alert you when approaching shallows during low tide runs. Built for real-world marine conditions, it stands up to spray, sunlight glare, and nighttime outings with unmatched clarity.

Standout Features for Everyday Boating

• Large, Crisp Display: Extra-large digits on a high-contrast LCD ensure readability from across the cockpit, even in bright sunlight or pitch-black nights with red backlighting.
• Smart Alarms: Configurable shallow and deep water alarms, plus anchor position alerts, keep you proactive about underwater obstacles.
• Depth Offset Calibration: Fine-tune readings to account for your hull's keel, propeller, or other protrusions, displaying true waterline depth.
• Minimum Depth Memory: Track the shallowest point reached on your voyage—handy for replaying trips or planning safer routes.
• Effortless Networking: SeaTalk compatibility links seamlessly with Raymarine autopilots, chartplotters, and other instruments for a unified dashboard experience.
• Space-Saving Design: Low-profile surface mount fits tight helms, complete with a protective sun cover for longevity.

Why Boaters Choose This Depth System

For smaller powerboats, yachts, and RIBs, the i40 Depth shines by packing big-boat capabilities into a compact form. Its transom-mounted transducer installs quickly without drilling through the hull, ideal for trailered boats or weekend warriors. Low power draw—under 0.4 watts—means longer outings without draining batteries, perfect for off-grid adventures.

Fishermen love the precision for marking drop-offs, while cruisers rely on alarms for stress-free anchoring. Unlike bulkier alternatives, it maintains the same footprint as legacy models, easing upgrades without redesigning your panel.

"Switching to the i40 transformed my weekend sails—depth info is now glanceable, and alarms saved me from a rocky shoal last season." – Experienced skipper feedback echoes this reliability.

Simple Setup for Lasting Performance

Mount the transducer on your transom for optimal water flow readings, route cables cleanly to the display, and power via 12V DC. SeaTalk backbone integration means expanding your system later is straightforward. Calibration takes minutes: adjust offset for accurate keel-to-waterline measurements. IPX6 waterproofing shrugs off waves, and wide temp range handles hot decks or chilly mornings.

Technical Specifications at a Glance

Specification	Details
Dimensions	5.04" x 2.83" x 1.37"
Nominal Voltage	12V DC
Operating Voltage Range	10 - 16V DC
Current Consumption (Typical)	30mA at 12V
Current Consumption (Max)	100mA
Operating Temperature	-20°C to +55°C
Storage Temperature	-25°C to +70°C
Relative Humidity	93%
Waterproof Rating	IPX6
Connections	SeaTalk, Depth Transducer
Display Type	88mm Segmented LCD

Frequently Asked Questions

What transducers work with the Raymarine i40 Depth Display?

It pairs perfectly with the included transom mount transducer, optimized for accurate depth from the boat's stern. Compatible with standard Raymarine depth sensors via built-in connections.

How do I set up depth alarms on the i40?

Use the three intuitive buttons to access menu settings. Customize shallow, deep, anchor shallow, and deep anchor alarms for your boating needs—alerts sound immediately upon threshold breach.

Is the i40 Depth compatible with other Raymarine devices?

Yes, SeaTalk networking enables full integration with autopilots, multifunction displays, and other i40 series instruments like speed or wind for a complete helm solution.

Can I calibrate the depth reading for my boat's hull?

Absolutely. The depth offset feature lets you adjust for keel depth, props, or skegs, ensuring the display shows true depth from the waterline.

What's the power efficiency like for extended trips?

Ultra-efficient at less than 0.4 watts typical draw, it sips power from your 12V system, maximizing battery life on long cruises or when engines are off.

How visible is the display in different lighting?

Razor-sharp LCD with large digits and red backlighting provides excellent visibility day or night, cutting through glare and ensuring quick glances underway.

Does it remember minimum depth between power cycles?

Yes, it retains the minimum depth recorded during your trip, resetting only when you choose—great for logging shallows on return voyages.

i40 Depth w/Transom Mount Transducer

Compact and feature-packed instruments, the i40 series instruments are smart choice for boaters looking high performance and great value.

The i40 series is simple to operate thanks to the use of just three control buttons, i40 has extra-large digits and razor-sharp LCD displays and red backlighting for outstanding visibility in all lighting conditions.

These SeaTalk® compatible instruments offer full integration with Raymarine autopilots and navigation equipment. The ultra-sleek design of i40 line is designed to complement our full line of a-Series, c-Series and e-Series Multifunction displays, and looks great on the helm of any boat. All i40 Instruments come with a low-profile surface mounting kit and silicone rubber sun cover. An optional bracket mounting kit is also available separately.

i40 Instruments are designed to operate from 12V DC power, and are ultra-efficient drawing less than 0.4 watts for superior run-time and excellent green credentials. The i40 instruments are all covered by Raymarine's industry leading 2-year warranty, upgradeable to 3-years at no charge by registering online with 90 days of purchase.

i40 Depth Instrument
Raymarine's i40 Depth Instrument is available as a complete system with a thru-hull transducer, transom mount or as a display-only kit enabling you to monitor your boat's depth at a remote location. The i40 Depth Instrument offers easy-to-read displays of current depth, and minimum depth recorded. The unit also offers a convenient shallow depth alarm, deep depth alarm, shallow anchor alarm, and deep anchor alarm. The i40 Depth Instrument offers convenient depth offset controls allowing you to calibrate the readout to compensate for projections (rudders, props, skegs etc.) or to display the depth from the waterline of the vessel.

i40 Key Features

• Ultra-modern design complements Raymarine's latest a-Series, c-Series and e-Series Multifunction display and instrument systems.
  
• High contrast LCD displays with large digits for excellent visibility.
  
• Red backlighting for outstanding night-time visibility.
  
• Simple SeaTalk networking with other Raymarine instruments, autopilots and MFDs.
  
• Built-in transducer connections simplify installation.
  
• Small form factor saves space at the helm without sacrificing features.

The Raymarine i40 depth display system can be used as a complete system with hull transducers, beam mounts, or as a display-only kit, so that you can monitor the ship's sailing conditions.
SKU: NVN-46051
MPN: E70143
UPC: 723193769256