Raymarine i40 Bidata Display System w/Thru-Hull Transducers

The Raymarine i40 Bidata system combines a compact digital display with P7 depth and P372 speed/temperature through-hull transducers. It gives the helm the three readings most cruising crews check regularly: bottom depth, speed through water, and water temperature. The dual-data display is designed for small instrument panels, while SeaTalk and SeaTalkng connect it to a Raymarine network.

Both sensors are included, so the package is more complete than an i40 display-only instrument. The P7 requires a 51mm hull opening, and the P372 adds a second through-hull installation for speed and temperature. The display draws only 35-50mA from 12V, keeping the electrical load low. This is a practical boat instrument system, not a chartplotter or side-imaging fishfinder; it shows sensor readings rather than sonar pictures.

Who Is This For?

This Raymarine bidata system suits cruising sailboats, coastal yachts, cabin cruisers, and 20- to 45-foot fiberglass boats with room for two through-hull sensors. It is not ideal for trailer boats or buyers wanting charts, GPS, radar, or imaging sonar.

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 Bidata is the most complete Raymarine instrument package in this group, combining depth, speed, and temperature sensors in one compact system. The trade-off is installation effort: two through-hull sensors mean more drilling, sealing, and setup than the single-transducer depth packages. Choose it when reliable boat-speed and water-temperature data matter alongside depth.