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Raymarine

T120

Wireless masthead sensor

The Raymarine T120 wireless masthead sensor precisely measures wind speed and direction without requiring mast wiring. Designed for simplified installation at the masthead, it integrates with Raymarine instruments for immediate display. The kit includes the wind transducer, a mounting bracket, three mounting screws, and a safety bolt.

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571,56€

571,56€ ~~696,00€~~

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Technical specifications

Anemometer type	Cup anemometer with wind vane
Operating voltage	Internal (solar battery)
Cable length	None (wireless)
Wind vane / anemometer compatibility	Cup anemometer with wind vane
Wireless connectivity	Micronet
Mounting type	Top-of-mast mounting
Certifications	FCC,Industry Canada,CE

Detailed description

The Raymarine T120 wireless masthead sensor is a wind transducer designed to provide accurate wind speed and angle data to navigation instruments. It stands out for its simplified installation at the masthead, avoiding complex cable runs thanks to its wireless connectivity. This system is compatible with Raymarine displays, enabling immediate visualization of critical sailing information.

Installation and positioning

The T120 is intended to be mounted at the masthead, with the transducer head positioned forward and the vane precisely aligned with the boat’s longitudinal axis. Installation requires drilling three 4 mm holes to secure the supplied mounting bracket. The wind transducer is then inserted into the bracket and secured with a bolt. An initial calibration is required after installation to ensure accuracy of apparent wind speed and angle measurements.

Maintenance and durability

The Raymarine T120 design includes user-replaceable components, including the vane, anemometer cups, and bearing assembly. This modularity simplifies maintenance and extends the sensor’s service life. The T120 complies with FCC (Part 15) and Industry Canada (RSS) regulations, ensuring reliable emissions and interference immunity. It serves as an alternative to wired wind sensors, commonly found in instrument ranges from brands such as B&G or Garmin, by offering greater installation flexibility for pleasure sailboats.

Documentation

Type	Nom
	EN - Notice d'installation - Capteur aérien sans fil
	EN - Gabarit de montage - Wind Transmitter / Display, Hull Transmitter & Wireless Interface - UU048 Rev 09
	EN - Notice d'installation - Capteur aérien sans fil
	EN - Notice d'installation - Capteur aérien sans fil
	EN - Notice d'installation - Capteur aérien sans fil

Expert opinion

Pol CONIN

Digital Manager

« Technical analysis: Raymarine T120 wireless wind sensor »

The Raymarine T120 wireless masthead sensor is a practical solution for acquiring wind data at the masthead. Its main advantage is its wireless architecture, which eliminates the need to run cables through the mast. This feature significantly simplifies installation, especially on existing sailboats where routing a new cable can be complex and costly. This sensor is ideal for mid-sized recreational sailboat owners looking to upgrade or replace their wind sensor with minimal rigging work.

Physical installation at the masthead, while requiring climbing, is made easier by the provided mounting kit. It is crucial to ensure precise alignment of the wind vane with the boat's longitudinal axis to guarantee accurate wind angle measurements. Post-installation calibration is essential for reliable data. The ability to replace wear parts such as the wind vane and anemometer cups is a notable advantage in terms of durability and long-term maintenance cost, allowing only the mechanical components exposed to environmental stress to be replaced.

It is important to note that the T120, as a wireless sensor, must integrate into a compatible Raymarine instrument network for data visualization. It is not a standalone system but a component of a navigation ecosystem. Unlike vertical wind sensors such as the T222, often preferred for tall masts or specific racing applications, the T120 offers a more common horizontal format, suitable for a wide range of sailboats. Before installation, check compatibility with existing displays and plan the calibration procedure.

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Wireless masthead sensor

571,56€

571,56€ ~~696,00€~~

Frequently Asked Questions

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What is the primary function of the Raymarine T120 wireless air sensor?

The Raymarine T120 wireless masthead transducer is a wind transducer designed to measure and provide accurate data on wind speed and angle. This information is then transmitted wirelessly to compatible navigation instruments, allowing navigators to view real-time apparent wind conditions.

What are the advantages of a wireless wind sensor like the Raymarine T120?

The main advantage of the Raymarine T120 sensor is its simplified installation. Being wireless, it eliminates the need to run complex cables through the mast, making masthead mounting much easier. This provides greater flexibility and reduces installation time and complexity compared to traditional wired systems.

How should the Raymarine T120 aerial sensor be positioned on the mast?

The T120 wind transducer must be mounted at the masthead. It is critical that the transmitter head faces forward and that the vane is precisely aligned with the boat’s longitudinal axis (fore-aft axis). This positioning ensures accurate wind angle measurements.

Which tools are required to install the T120 wind transducer?

For the installation of the Raymarine T120 wireless air sensor, the following tools are required:

An electric drillA 4 mm drill bitA Phillips screwdriver

Which parts are supplied with the Raymarine T120 aerial sensor for installation?

The Raymarine T120 wireless masthead sensor is supplied with the following parts to facilitate installation:

A masthead mounting bracketThree mounting screwsThe wind transducer (the sensor itself)A mounting boltNote that depending on the masthead plate, alternative mounting screws or bolts may be required.

Does the T120 transducer require calibration after installation?

Yes, to ensure measurement accuracy, the T120 wind transducer must be calibrated before use. The calibration and alignment process is detailed in your Raymarine navigation instrument manual.

Which systems or displays is the T120 wireless air sensor compatible with?

The Raymarine T120 wireless masthead sensor is compatible with Raymarine displays. It is designed to provide wind speed and angle data to these instruments, enabling immediate display of critical sailing navigation information.

Is it possible to replace components of the T120 transducer in case of wear?

Yes, the Raymarine T120 design includes user-replaceable components. In case of wear or damage, you can replace the wind vane, anemometer cups, and bearing assembly. For installation details of these spare parts, refer to the user manuals provided with the replacement items.

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