Furuno 300WX Ultrasonic Weather Station - NMEA 2000 [300WX]
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Description and Specifications
300WX Ultrasonic Weather Station - NMEA 2000
The 300WX WeatherStation® is engineered for professionals who operate in motion — agricultural operators, autonomous vehicle designers, marine integrators, and industrial system builders who can’t afford uncertainty.
Unlike traditional wind sensors, Airmar WeatherStations deliver accurate wind speed and direction from moving vehicles. By combining GNSS positioning, a stabilized 3-axis compass, and motion sensing, they continuously correct apparent wind caused by movement to deliver calculated Dynamic True wind speed and direction. Whether mounted on an agricultural sprayer, sailboat, weather vehicle, or autonomous platform, the wind data remains accurate — even while you’re moving.
Designed for Modern Equipment Integration
The 300WX was built with today’s machinery in mind. With added J1939 and ISOBUS outputs and automatic baud-rate detection, it integrates seamlessly into agricultural and heavy-equipment systems. Installation is simple. Compatibility with a wide range of systems is proven. Integration headaches are reduced.
Built to Work — Not to Be Serviced
Mechanical sensors fail. Wind cups break. Vanes wear out. The 300WX never does—ultrasonic technology means no moving parts, no maintenance, no downtime.
Install it once. Rely on it every day.
Wireless Bluetooth™ connectivity** to Airmar’s CAST™ app allows configuration, calibration, and firmware updates without removing the instrument from its mounted location. No pulling equipment out of service. Just fast, secure updates from a mobile device.
A Complete Environmental Picture
In a single compact instrument, the 300WX provides a holistic view of environmental conditions — wind speed and direction, temperature, barometric pressure, relative humidity, heat index and wind chill, vessel or vehicle motion, and GNSS positioning. It measures both the weather around you and the motion of the platform beneath it. That context is what transforms raw data into operational intelligence.
- Ultrasonic measurement of apparent and Dynamic true wind speed and direction
- Barometric pressure
- Air temperature and wind chill
- Relative humidity (field serviceable option)
- Calculated dew point and heat index
- GNSS position, speed over ground, and course over ground
- Three-axis, solid-state compass with dynamic stabilization
- Three-axis rate gyro supplies rate-of–turn data
- Three-axis accelerometer for best-in-class pitch and roll information
- Housing IP64 rated for dust/water-ingress protection
- Data output via a single cable (various lengths available): NMEA 0183/ASCII serial data protocol over RS-232 interface; NMEA 2000 protocol over CAN, J1939, ISOBUS
Features:
- Enhanced wind speed accuracy: 1.5 knots RMS at 20 knots
- Bluetooth® wireless connectivity for use with Airmar’s CAST™ app to view data, configure sensors, and perform firmware updates
- Added communication protocols: J1939 and ISOBUS
- Automatic baud rate detection for J1939 and ISOBUS (250 kbps / 500 kbps)
What's Included?
- 300WX Ultrasonic Weather Station
- 000-168-926 Threaded Mounting Adapter for Module
- 000-168-927 Threaded Adapter for Cable Side-Exit
- AIR-331-029-02 Cable Assy (6m) Drop
- Owner's Guide
- Airmar Cast Quick Start Guide
Shipping, Warranty & Returns
Shipping: "In-stock items ordered by 4:00 PM EST ship the same day. High-value marine electronics are shipped insured and may require signature confirmation."
Warranty: "Salina Vita is an Authorized Dealer. Your purchase includes full manufacturer warranty support. Proof of purchase is retained for your records, and any warranty service is handled directly through the manufacturer."
Returns: "Eligible uninstalled merchandise in its original, factory-sealed packaging may be returned within 30 days of receipt. All returns require an RMA number and may be subject to a restocking fee of up to 15%. Electronics that have been installed or powered on are non-returnable."
Compatibility & Fitment
Marine electronics are highly vessel-specific. If you are unsure if this integrates with your current helm, please contact our concierge team for a fitment review prior to ordering.
If you have any questions, you are always welcome to contact us. We'll get back to you as soon as possible, within 24 hours on weekdays.
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Shipping Information
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Contact Us
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FAQs
Please read our FAQs page to find out more.
When will my order ship?
For in-stock items, orders placed by 4:00 PM EST are eligible to ship the same day. If any item in the order is not currently in stock, shipment timing will depend on availability.
What is your return window?
Eligible merchandise may be returned within 30 days from the date of receipt. All returns require a Return Merchandise Authorization (RMA) number before anything is sent back. For the smoothest experience, we ask customers to contact Salina Vita first so we can coordinate the request properly. Returned merchandise must be complete, in its original packaging, and in resalable condition. Items that arrive incomplete, improperly packed, or not suitable for resale may not qualify for return approval.
Are restocking fees possible?
Yes. Approved returns may be subject to a restocking fee of up to 15%. Non-stock items may not be returned. In addition, opened or unsealed DVDs, CDs, and cartography products are non-returnable unless defective. If the product falls into CWR’s excluded media categories—such as opened or unsealed cartography, DVDs, or CDs—it is not returnable unless defective.
If my unit needs warranty service, should I send it back to Salina Vita?
No. Units requiring service, whether under warranty or otherwise, should be returned directly to the appropriate manufacturer, not to Salina Vita. We are always happy to help guide you to the correct manufacturer support path. Absolutely. While the service destination is the manufacturer, we can help you identify the proper support channel and make the process feel more straightforward and well-managed. Units that require service themselves, however, should go directly to the manufacturer under CWR’s policy.
I still have more Questions, can we contact you?
At Salina Vita, we believe premium marine commerce should feel measured, transparent, and reassuring. If you have a question about a shipment, return eligibility, or manufacturer service, contact us before taking the next step and we will guide you with the discretion and clarity your vessel deserves.