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Raymarine

T912

Retractable depth sounder sensor

The Raymarine T912 is a hull transducer, acting as an interface for your depth, speed, and temperature sensors, and not as a retractable fishfinder transducer. It is designed for a 12/24 Vdc power supply and requires a ventilated installation above the waterline. This essential module converts transducer signals for Raymarine instrument systems. Self-tapping screws for mounting are included with this product.

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£105.40 GBP

£105.40 GBP ~~£119.34 GBP~~

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In stock

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

Custom installation

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Installers near you

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Support service

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Technical specifications

Operating voltage	12/24 V
Sonar connector type	Screw terminal block
Product width	52.5 mm
Integrated temperature sensor	No
Product height	42.5 mm
Compatible displays	Raymarine instrument systems
Wireless connectivity	No
Mounting type	Surface mounting
Integrated speed sensor	No

Detailed description

The Raymarine T912 hull transducer interface is a dedicated module for connecting depth, speed, and temperature sensors to your boat’s 12/24 V DC power supply. Designed to collect and transmit transducer data, it centralizes critical navigation and performance information. This unit is a key component for Raymarine instrument systems requiring analog sensor data integration.

Installation and wiring

The T912 requires specific installation to ensure proper operation and longevity. It must be mounted at least 50 cm above the waterline in a well-ventilated area, not in a watertight compartment to prevent moisture or heat buildup. The unit installs vertically with cables exiting from the bottom. Installation uses three 2.5 mm holes with the supplied self-tapping screws. Care must be taken when tightening screws to avoid damaging the housing.

Transducer cable connections must follow the color code marked on the unit. For Triducers, the ground braid must be connected to the depth connector, not the speed connector, to prevent short circuits. If a speed transducer lacks a temperature sensor, the brown and white wires of the speed connector must be linked. Applying silicone grease to contacts is recommended to enhance conductivity and protection. The unit is compatible with 12/24 V DC power and can be powered by a Raymarine solar panel if no onboard power source is available.

Documentation

Type	Nom
	EN - Mounting Template - Retractable Depth Sounder Sensor
	EN - Installation Manual - Retractable Depth Sounder Sensor
	EN - User Manual - Retractable Depth Sounder Transducer
	EN - User Manual - Retractable Depth Sounder Sensor
	EN - User Manual - Retractable Depth Sounder Transducer
	EN - User Manual - Retractable Transducer
	EN - User Manual - Retractable Transducer Sensor

Expert opinion

Pol CONIN

Digital Manager

« Technical analysis of the Raymarine T912 hull transducer »

The Raymarine T912 hull transmitter is a critical component for any navigation instrument installation. It is not a sensor itself, but an essential interface unit that converts analog signals from your transducers (depth sounder, speed log, temperature) into a format usable by the boat's electrical system, typically for displays or computers. Its value lies in its ability to centralize and ensure the reliable transmission of fundamental data.

During installation, it is crucial to follow mounting guidelines: positioning more than 50 cm above the waterline and in a ventilated space protects the unit from direct environmental stresses. Attention to wiring details is paramount, particularly for Triducers where grounding the depth connector is mandatory, or for speed sensors without temperature requiring specific terminal bridging. These precautions ensure signal integrity and system longevity. The T912 integrates seamlessly into existing Raymarine architectures, providing a reliable solution for collecting primary data, and is a wise choice for upgrading or expanding an instrument network requiring a dedicated interface for traditional transducers.

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Retractable depth sounder sensor

£105.40 GBP

£105.40 GBP ~~£119.34 GBP~~

Frequently Asked Questions

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How should the T912 be oriented during installation?

The unit must be mounted vertically, with the cables exiting from the bottom. It is important to note that the mounting template must be inverted relative to the transmitter itself.

What drill bit size is required for the mounting holes of the T912?

You will need to drill three 2.5 mm holes to secure the T912. These holes are marked 'B' on the provided mounting template.

Which types of screws are used to mount the T912?

The T912 is mounted using the self-tapping screws supplied with the unit.

Is it important not to overtighten the screws when installing the T912?

Yes, it is very important not to overtighten the screws when securing the T912. Excessive tightening could damage the unit’s housing and compromise its integrity.

How should I connect the transducer cables to the T912?

Transducer cables must be connected following the color code indicated on the unit. It is also essential to sleeve the ground braids to prevent short circuits.

What is the specific connection requirement for a Triducer to the T912?

For a Triducer, the ground braid must be connected to the depth connector, not the speed connector. This is critical to avoid short circuits and ensure proper operation.

What to do if my speed sensor has no temperature sensor?

If your speed sensor does not include a temperature sensor, you must connect the brown and white wires of the speed connector. This ensures proper data interpretation by the transducer.

Should I apply grease to the T912 electrical contacts?

Yes, it is recommended to apply silicone grease to the terminal contacts. This optimizes conductivity and provides additional protection to the electrical connections.

How should I organize the cables near the T912 transducer?

It is advisable to secure and support the cables near the transducer. This helps reduce tension on the connections and maintains a clean and secure installation.

Is the T912 compatible with older transducers?

Yes, the T912 can be used with existing or older transducers. However, it is recommended to carefully check the connections and wiring, particularly for speed transducers without a temperature sensor, to ensure proper connection between the brown and white terminals.

What data does the T912 transmit to Raymarine instruments?

The T912 transmits depth, speed, and temperature data collected from connected transducers. This information is then used by Raymarine instrument systems for display and analysis.