Raymarine i40 Speed Pack ST69 Speed/Temp Transom Mount Transducer
Shows current, maximum and average boat speed, log trip and sea temperature.
Red backlighting for improved visibility.
Large controls for ease of use at sea.
Low power consumption for increased battery life.
SeaTalk interface (SeaTalkNG when used with SeaTalk converter).
Built-in transducer interface.
Same footprint as the older Raymarine ST40 instrumentation.