Raymarine i40 Speed Display System w/Transom Mount Transducer

The Raymarine i40 Speed Display System with Transom Mount Transducer is a compact marine instrument designed to deliver precise boat speed data with the reliability and simplicity serious boaters demand. Whether running offshore for stripers and blues or navigating coastal shallows, accurate speed information is critical for throttle management, fuel efficiency calculations, and maintaining safe transit speeds in variable conditions. The i40 Speed combines proven Raymarine engineering with intuitive controls built for the real demands of saltwater and freshwater operation.

Operating through three push buttons, the i40 Speed minimizes complexity during critical moments on the water. The large-digit LCD display with red backlighting ensures visibility in bright sunlight and dawn/dusk conditions without draining battery reserves. The transom-mount transducer design places the speed sensor directly in the water flow for clean signal capture, avoiding turbulence interference common with hull-mounted alternatives. SeaTalk compatibility allows integration with other Raymarine instruments, building a cohesive onboard network that consolidates critical navigation data into one command center. The compact 7 x 4 x 19-inch footprint mounts cleanly on console or dash without sacrificing visibility of other critical gauges.

This system serves both weekend fishermen managing fuel consumption during long runs and offshore anglers who need accurate speed data for drift calculations and fish behavior assessment. Commercial operators and serious sport fishermen appreciate the durability Raymarine brings to marine electronics. The i40 Speed fills the gap between entry-level approximation and complex multi-function displays, offering genuine precision without unnecessary features or excessive power draw.

The i40 series represents the practical choice for vessel operators who understand that speed accuracy drives operational efficiency. Salt-air corrosion resistance, straightforward calibration, and field-proven reliability make this instrument a long-term value investment. Upgrade your boat's speed measurement and streamline your operational data with professional-grade marine electronics built for real-world boating conditions.