Raymarine i40 Depth Display System w/Thru-Hull Transducer

Discover Reliable Depth Monitoring with the Raymarine i40 System

Navigating shallow waters or anchoring safely demands precise, real-time depth information you can trust. The Raymarine i40 Depth Display System with thru-hull transducer delivers just that—clear, oversized readings that cut through glare and low light, keeping you informed without distraction. Perfect for RIBs, powerboats, and compact yachts, this setup combines rugged durability with smart integration, ensuring your vessel stays safe on every outing.

Standout Features for Everyday Boating Adventures

• Extra-Large, High-Contrast LCD: 3.5-inch segmented display shows depth up to 984 feet with massive 28mm digits for instant readability, even from afar or in rough seas.
• Smart Alarms: Customizable alerts for shallow water, deep water, shallow anchor, and deep anchor positions prevent surprises and enhance safety.
• Thru-Hull Transducer Included: PBT housing for reliable bottom tracking through the hull, minimizing drag and providing consistent data in various conditions.
• SeaTalk Network Ready: Seamlessly shares data with Raymarine autopilots, multifunction displays, and other instruments—host your own sensor or repeat from the network.
• Low-Power Efficiency: Draws under 30mA at 12V DC, extending battery life on long trips without compromising performance.
• Red Backlighting and IPX6 Waterproofing: Nighttime visibility shines, and it handles spray, rain, or washdown with ease.

Why Boaters Choose the i40 Depth System

Unlike basic fishfinders cluttered with menus, the i40 focuses on what matters: straightforward depth, min/max readings, and offset calibration to account for your hull's keel or props. Its compact 5.04 x 2.83 x 1.4-inch footprint fits tight helms, with simple three-button controls gloved hands can manage mid-wave. Integrate it into your existing Raymarine setup for a unified dashboard—no extra wiring headaches.

Real-world perks shine on day sails or overnight cruises. Picture dropping anchor confidently in unfamiliar bays, alarms buzzing before you scrape bottom, or monitoring depth trends to dodge shoals. Low power means less generator runtime, and the thru-hull design offers cleaner installs than transom mounts for offshore runs.

Effortless Integration and Setup Tips

Powered by 12V DC (10-16V range), connect via SeaTalk for power, data, and dimming control from one spot. The included surface-mount kit secures it firmly; opt for trunnion if you prefer swivel adjustments. For the thru-hull transducer, select a fairing block matching your hull speed and deadrise—fairing ensures optimal water flow for accurate readings at speed.

Calibrate easily: Set depth offset to read from waterline or keel, and log minimum depths for post-trip review. Network it with wind or speed i40s for a full instrumentation suite, complementing a-Series or e-Series MFDs visually and functionally.

Long-Term Performance and Care

Built for -4°F to 131°F operation and 93% humidity, this system thrives in harsh marine environments. Routine checks include transducer cleaning to remove growth, cable inspections for chafe, and firmware updates via Raymarine tools. Its efficient design supports eco-conscious boating with minimal draw, and robust construction means years of service with basic upkeep.

Boat owners rave about its reliability over bulkier alternatives—less clutter, sharper data, and that peace of mind when visibility drops to zero.