i40 Speed

The i40 Speed is a compact speed instrument display and displays current, maximum and average boat speed, log trip and sea temperature.

Product Options
i40 Speed
i40 Speed

Easy to see, Easy to use

The i40 speed instrument displays are designed to show the current, average, and maximum boat speed as well as the sea temperature and log trip. Designed for ease of use, the i40 compact display has very low power draw and excellent visibility. Perfect for small yachts, RIBs, and powerboats, the powerful but surprisingly compact SeaTalk i40 Speed instrument display is easy to see even in poor lighting conditions thanks to the extra-large digits and super-sharp LCDs.

i40 Speed Key Features

  • Red backlight to maximize visibility
  • Longer battery life thanks to low power consumption
  • Large controls ensuring easy usage at sea
  • Built-in connections for a depth and temperature transducer
  • SeaTalk network interface for power and data connectivity
  • Master or repeater. i40 can be the host for its own transducer or repeat data from another SeaTalk network device.
  • Surface mount or optional trunnion mount kit

i40 group

Full Integration with Raymarine Equipment

Designed with convenience in mind, the i40 instrument displays fully integrate with Raymarine navigation equipment and autopilots for a seamless experience at sea. i40 can be the host for its own transducer or repeat data from another SeaTalk network device. i40 also supports network dimming control so it is easy to adjust the lighting levels for all devices from a single location. i40 instruments can also communicate on the SeaTalkNG network using an optional SeaTalk to SeaTalkNG Converter Kit (E22158), sold separately.

i40 Speed Models

Choose the i40 Speed as a display or choose an i40 Speed pack with a transducer

i40 Speed

SKU: E70063
i40 Speed
  • Display Only

i40 Speed Pack Transom

SKU: E70141
i40 Speed Pack Transom
  • Includes ST69 transom mount transducer

i40 Speed Pack Through Hull Transducer

SKU: E70140
i40 Speed Pack Through Hull Transducer
  • P371 Through hull transducer included

i40 Speed Resources


SeaTalk, Speed transducer, Depth Transducer


Length: 128 mm (5.04 in), Height: 72 mm (2.83 in), Depth: 35 mm (1.4 in)

Relative humidity

Max. 93%

Waterproof rating


Storage temperature

-30 °C to +70 °C (-22 °F to 158 °F)

Operating temperature

0°C to +70°C (32°F to 158°F)


Europe 2004/108/EC

Nominal supply voltage

12 V dc

Operating voltage range

10 V dc to 16 V dc

Current (typical / max)

35 mA / 100 mA

What's in the box?


i40 Instrument display


i40 Sun cover


Mounting gasket


Clamping bracket


Fixing stud and thumb nut


SeaTalk power cable 1m (3ft)