Raymarine St40 Speed log Transducer Short

The Raymarine ST40 Speed Log Transducer Short is designed for precise speed measurement and reliable performance in marine environments. Its compact, shortened design facilitates easy installation on various vessels, ensuring accurate speed data critical for navigation and performance monitoring. Ideal for professionals seeking trustworthy instrumentation, this transducer integrates seamlessly with the ST40 system to deliver consistent, real-time speed readings. Durable and engineered for longevity, it maintains reliable function under demanding conditions, making it an essential component for effective marine navigation.

Specification	Value / Range
Model	E26008 / ST300 / P371
Mounting style	Thru‑hull, low profile plastic housing (P371)
Compatible hull materials	Fibreglass or metal
Hole diameter for installation	~ 2″ (51 mm)
Required bilge / headroom beneath floorboards	~ 153 mm (~ 6 inches)
Overall height	approx 75 mm (2.96 in)
Drag extension outside hull	~ 5 mm (plastic housing)
Cable length	~ 10 m (33 ft) with ISO fork / spade connectors
Supply voltage	5 V DC to 25 V DC
Current draw	~ 100 mA at 12 V DC
Speed range	0.1 knot to 40 knots
Nominal pulse rate	~4.8 pulses per knot
Compatible instruments	Raymarine ST40, ST60, ST60+, i40, i50, iTC‑5, etc. (other analog speed/temp instruments