Raymarine Low Profile Thru-Hull Transducer.

Raymarine Low Profile Thru-Hull Transducers for ST40 Instruments

Models:

• ST300/P371 – Plastic Low Profile Through Hull Speed Transducer

• P7 – Nylon Low Profile Through Hull Depth Transducer

 Key Features

The Raymarine ST300/P371 and P7 transducers are part of Raymarine’s compact, low-profile range designed for use with ST40 instruments. Both are designed to provide accurate readings for smaller vessels where drag reduction and durability are essential.

Raymarine ST300/P371 Speed Transducer

• Measures Speed and Water Temperature.

• Plastic, low-profile design minimizes drag and enhances performance at speed.

• Ideal for use on fiberglass or aluminum hulls.

• Right-angle cable exit design is perfect for limited-spacing installations.

• Self-closing valve reduces water ingress during paddlewheel maintenance.

• Paddlewheel with molded fins for increased accuracy in cross-currents.

• Speed range: 0.1 – 40 knots.

• Output voltage: 5 – 25 V DC (typ. 12 V).

Raymarine P7 Depth Transducer

• Measures Depth Only using a single 200 kHz frequency for accurate returns.

• Low-profile, flush design reduces drag and turbulence.

• Suitable for fiberglass or wooden hulls.

• Easy-to-fit design with a 30 ft (10 m) molded cable.

• Reliable 200 kHz sonar frequency provides accurate readings at shallow-to-moderate depths.

Both models are plug‑and‑play compatible with Raymarine ST40, i40, i50, i70, and legacy depth/speed instruments (with adapter pods where required).

 Comparison Table

What’s in the Box

• ST300/P371 or P7 Transducer (based on model ordered)

• 30 ft (10 m) cable with molded connector

• Through‑hull mounting hardware and seal kit

• Installation and setup instructions