Raymarine Capteur d'angle de barre rotatif M81105 - Comptoir Nautique

Capteur d'angle de barre rotatif Rudder Raymarine - M81105 - Nauti Boutique

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Raymarine

M81105

10m cable bar angle sensor

The Raymarine rudder angle sensor (M81105) provides precise position feedback to your autopilot computer, optimizing course holding and helm responsiveness. Designed for demanding navigation systems, it ensures reliable mechanical measurement essential for medium to large power units. Included: rudder position sensor with integrated 10-meter cable and mounting hardware.

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£256.96 GBP

£256.96 GBP ~~£291.71 GBP~~

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In stock

Free pickup point from €150 in France
Pickup at Skysat possible

Custom installation

Trust Skysat to install the equipment on board

Request a quote

Installers near you

thanks to our network of approved installers

Find an installer

Support service

Opt for additional installation assistance

Technical specifications

Operating voltage	5
Operating temperature	-20°C to +60°C
Product width	90
Product height	55
Product depth	50
IP rating	IPX6
Bus compatibility	SeaTalk
Wired network	Raymarine Proprietary (analog)
Mounting type	Surface mount with link arm
Certifications	CE,IEC 60945
Sensor type	Rotary Potentiometer
Sensor compatibility	Raymarine Autopilot Computers (ACU series), iTC-5 converter
Angular accuracy	±2°
Cable length	10.0
Update rate	N/A (defined by computer)
Sensor output type	Resistive
Measurement range	±60°
Angle resolution	< 1°
Linearity	± 2.0%
Connector type	Bare wires
Cable jacket material	Marine-grade resistant PVC
Housing material	UV resistant reinforced plastic
Linkage arm material	Stainless steel
Total mechanical travel	120
Package contents	Rudder angle sensor, link rod, mounting hardware, installation manual
Product weight	0.7
Reverse polarity protection	Yes
Salt mist resistance	Yes
Vibration resistance	Compliant with IEC 60945 standard

Detailed description

The Raymarine rudder angle sensor with 10-meter cable (part number M81105) is an essential component for optimizing the performance of your autopilot system. Designed to provide accurate, real-time feedback on the exact position of the rudder, this sensor allows the steering computer to react faster and refine course holding, thereby reducing wear on the power unit and electrical consumption.

Mechanical precision and system integration

Unlike virtual rudder angle systems, installing a physical sensor like the M81105 model guarantees absolute reliability, especially at low speeds or in rough seas. Supplied with a generous 10-meter cable, it is perfectly suited for sailboats and motorboats requiring a long wiring distance between the rudder stock and the autopilot computer (Raymarine ACU type). Its weight of 0.7 kg testifies to a robust construction adapted to the constraints of the marine environment.

Installation and reliability

This rudder position sensor integrates natively into the Raymarine ecosystem. Mechanical installation requires connecting the sensor arm to the steering sector or rudder stock, respecting the alignment detailed in the provided installation manual. Once calibrated, it transmits data to the network, also allowing for visual display of the rudder angle on your repeaters and multifunction displays, offering additional safety during port maneuvers.

Expert opinion

Pol CONIN

Digital Manager

« The essential mechanical precision for a responsive autopilot »

The installation of a physical rudder angle sensor remains the golden rule for any high-performance autopilot system. Although modern algorithms sometimes allow it to be dispensed with on small units, the Raymarine M81105 sensor provides irreplaceable mechanical precision. It eliminates latency in the calculation of the rudder's position by the computer, which is crucial in following seas or during delicate maneuvers. The 10-meter cable supplied as standard is a real technical asset, avoiding hazardous splices in damp bilges when connecting to the boat's network.

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10m cable bar angle sensor

£256.96 GBP

£256.96 GBP ~~£291.71 GBP~~

Frequently Asked Questions

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What exactly is the M81105 rudder angle sensor used for?

The Raymarine M81105 rudder angle sensor is a mechanical component that measures the exact position of your rudder. It sends this information in real-time to your autopilot computer, allowing it to react faster and more precisely to maintain course.

What are the advantages of installing this sensor compared to a virtual system?

Installing a physical sensor like the M81105 offers several advantages:

Increased reliability: It provides actual data, not an estimation, which is crucial at low speeds or in rough seas.Better performance: The autopilot is more responsive, refining course holding.Energy saving: By optimizing rudder corrections, it reduces wear on the power unit and electrical consumption.

Which Raymarine autopilot systems is this sensor compatible with?

This rudder angle sensor is designed for native integration with Raymarine ACU (Actuator Control Unit) autopilot computers. It connects directly to the dedicated port on these computers.

Is installing this sensor complicated?

Installation requires basic mechanical and electrical skills. It involves two main steps:

Mechanically attaching the sensor and its link arm to the steering sector or rudder stock.Connecting the cable to the autopilot computer.Once installed, a calibration step via the autopilot interface is essential.

What is the length of the cable supplied with the sensor?

The M81105 rudder angle sensor comes with a 10-meter cable, which is suitable for most sailboats and motorboats.

Can I use this sensor with an autopilot from another brand?

No, this sensor is specifically designed for the Raymarine ecosystem. It is intended to be connected to the brand's computers and is not compatible with systems from other manufacturers.

Do I need to calibrate the sensor after installing it?

Yes, calibration is a mandatory and essential step after installation. It allows the autopilot to know the rudder limits (port and starboard) and the center position to function correctly.

Will this sensor allow me to see the rudder angle on my displays?

Yes, once connected to the autopilot computer, the rudder angle information is transmitted over the network. You will then be able to view the rudder angle in real-time on your compatible Raymarine multifunction displays and repeaters.

What is included in the M81105 product box?

The box contains the rudder angle sensor itself, its connecting arm, and the 10-meter cable attached to it. Basic mounting hardware is also provided.

Is this sensor suitable for a sailboat and a motorboat?

Yes, this sensor is perfectly suited for sailboats and motorboats equipped with a compatible Raymarine autopilot system. The 10-meter cable length offers great installation flexibility on different types of boats.

Where should the sensor be physically installed?

The sensor must be mounted near the steering system. Its arm must be mechanically connected to the rudder stock or the steering quadrant to accurately track its rotational movements.

Where does the sensor cable plug in?

The 10-meter cable plugs directly into the dedicated port for the rudder angle sensor ('Rudder') on your Raymarine autopilot computer (ACU type).

Can this sensor be connected directly to a Raymarine multifunction display?

No, the rudder angle sensor cannot be connected directly to a multifunction display. It must be connected to an autopilot computer (ACU), which then processes and distributes the information over the network.