Airmar 120wx Weather Station Instrument | No Cable

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120wx WeatherStation® InstrumentThe Model 120WX is Airmar’s solution for recreational boating; feature rich, in a Durable, Rugged, Small footprint that is IPX4 or IPX6 rated for this environ...
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120wx WeatherStation® Instrument

The Model 120WX is Airmar’s solution for recreational boating; feature rich, in a Durable, Rugged, Small footprint that is IPX4 or IPX6 rated for this environment.

Reliability and performance, along with no moving parts, makes the 120WX an easy and affordable choice for your recreational boating needs.

  • Ultrasonic wind readings
  • Apparent Wind speed & angle
  • Barometric pressure
  • Air temperature
  • Wind chill
  • Optional relative humidity module
  • IPX4 with the RH Option
  • IPX6 without the RH Option
  • Output: Via a single cable (various lengths available)
    • NMEA 0183 protocol over RS422 interface and NMEA 2000 protocol over CAN BUS


Wind Data

  • Wind Speed Range:
  •  0 knots to 78 knots (0 MPH to 90 MPH, 0 m/s to 40 m/s)
  • Wind Speed Resolution:
  • 0.1 knot (0.1 MPH, 0.1 m/s)
  • Wind Speed Accuracy @ 0°C to 55°C (32°F to 131°F), no precipitation*:
  • Low Wind Speeds:
  • 0 -10 knots; 1 knot RMS +10% of reading
  • (0 MPH to 11.5 MPH; 1.1MPH + 10% of reading)
  • (0 m/s to 5 m/s; 0.5 m/s + 10% of reading)
  • High Wind Speeds:
  • 10-78 knots; 2 knots RMS or 5%, whichever is greater
  • (11.5 MPH to 90 MPH; 2.3 MPH or 5%, whichever is greater)
  • (5 m/s to 40 m/s; 1 m/s or 5%, whichever is greater)
  • Wind Speed Accuracy in wet conditions**:
  • 5 knots RMS (5.7 MPH RMS, 2.5 m/s RMS)
  • Wind Direction Range: 0° to 360°
  • Wind Direction Resolution: 0.1°
  • Wind Direction Accuracy @ 0°C to 55°C (32°F to 131°F), no precipitation*:
  • Low Wind Speeds (5° RMS typical):
  • 4 - 10 knots (4.6 MPH to 11.5 MPH, 2 m/s to 5 m/s)
  • High Wind Speeds (2° RMS typical):
  • >10 knots (>11.5 MPH, >5 m/s)
  • Wind Direction Accuracy in wet conditions** (8° RMS Typical):
  • 8 knots (>9.2 MPH, >4 m/s)

Compass Data

  • Compass Accuracy:
  • 1° static heading accuracy; 2° dynamic heading accuracy

Pitch and Roll Data

  • Pitch and Roll Range / Accuracy: ±50° / <1°

Air Temperature Data

  • Air Temperature Range***: -40°C to 55°C (-40°F to 131°F)
  • Air Temperature Resolution: 0.1°C (0.1°F)
  • Air Temperature Accuracy: ±1.1°C (±2°F)* @ >4 knots wind (>4.6 MPH wind) (>2 m/s wind)

Barometric Pressure Data

  • Barometric Pressure Range: 300 mbar to 1100 mbar (24 inHg to 33 inHg, 800 hPa to 1100 hPa)
  • Barometric Pressure Resolution: 0.1 mbar (0.029 inHg, 0.1 hPa)
  • Barometric Pressure Accuracy: ±1 mbar (±0.029 inHg, ±1 hPa) when altitude correction is available

Relative Humidity Data

  • Relative Humidity Range: 10% to 95% RH
  • Relative Humidity Accuracy*: ±5% units RH

Operating Temperature

  • Operating Temperature Range: -25°C to 55°C (-13°F to 131°F)

Supply Voltage

  • Supply Voltage: 12 VDC
  • Supply Current (@ 12 VDC):
  • (<85 mA) <1.0W, LEN 2

Data Input/Output

  • Output: Via a single cable (various lengths available)
  • NMEA 0183 protocol over RS422 interface and NMEA 2000 protocol over CAN BUS

Other Specifications

  • Weight: 300 grams (0.8 lb)
  • Mounting Thread Size on Base: Standard 1”-14 UNS (3/4” NPT optional)
  • Certifications and Standards:
  • CE, IPX6 (Relative Humidity/IPX4), RoHS, IEC60945

RMS—Root Mean Square, LEN—Load Equivalency Number

*When the wind speed is less than 2 m/s (4.6 MPH) and/or air temperature is below 0°C (32°F),

wind, temperature, and relative humidity readings will be less accurate.

**Wet conditions include moisture, rain, frost, dew, snow, ice and/or sea spray in the wind channel.

***Temperature and relative humidity reports invalid during heater operation.

****Airmar has made the address claiming modifications to enable compatibility with the ISO 11783

communication protocol for the agriculture industry – that is based on the SAE J1939 protocol.


  • Barometric Pressure: Yes
  • Humidity: Yes
  • Remote Monitoring: Yes
  • Temperature: Yes
  • Wind: Yes
  • Wireless: No
  • Box Dimensions: 5"H x 8"W x 12"L WT: 1.65 lbs

Owner's Manual (pdf)
Brochure (pdf)

BOE Marine is known for providing the absolute best installations on the brands we carry. We are pleased to expand our footprint in partnership with companies that share the same ideals as us. Listed below you will find our Installation Partners in key regions around the country. You can contact these companies directly and get the same great service you expect from BOE Marine. Through our partnerships you are able to order your equipment at the best prices, tax free, from our website. Then have one of our Installation Partners perform a high quality installation.

Our program is built upon a high degree of accountability. Our Installation Partners expect us to give great advice, prices, and supply all of the parts needed for the install. And we expect our Installation Partners to provide an expert installation in a timely manner and provide support for any equipment malfunctions or installation issues.

As the customer, you can be assured that you are buying from a dealer authorized in the brands we carry. And you will receive uncompromising advice and support on the local level from the Installation Partner, or via phone with BOE Marine. We feel there is no better package to get you the best pricing along with experienced local service.

Mid-Atlantic (MD, DE, DC)
Serviced by BOE Marine 866-735-5926

North Carolina (Lake Norman Area)

Serviced by BOE Marine of Lake Norman 866-735-5926

Florida West Coast (Tampa/St Pete Area)

Bluewater Custom Marine - 727-488-7171
Mobile Electronics Installation
St. Petersburg, FL
CONTACT: Martin Warren
Email: [email protected]

Fort Lauderdale - Miami Dade

Parker Yacht - 954-463-1515
225 SW 32nd Street
Fort Lauderdale, FL 33315
CONTACT: Ole Parker
Email: [email protected]

Palm Beach County

Marine Electronics Solutions - 561-427-1040
3866 Prospect Ave #8
West Palm Beach, FL 33404
CONTACT: Billy Byers
Email: [email protected]


HMS Marine Electric, LLC - 251-591-3283
400 Myrtle Avenue
Fairhope, AL 36532
CONTACT: Maclin Smith Jr.
Email: [email protected]

Cape Cod & Islands

Dempsey Marine Electronics & Electrical - 508-360-1094
234 Queen Anne Road #2
Harwich Mass 02645
CONTACT: Tom Dempsey
Email: [email protected]

Texas - Houston/Galveston & Surrounding Areas

Bill Platt Electronics - 409-739-3489
3501 Tallow Forest St
Dickinson, TX 77539
CONTACT: Bill Platt
Email: [email protected]

Washington DC / Occoquan

Jimmy's Mobile Marine
James Deuterman
9192 Big Springs Loop
Bristow, VA 20136
Email: [email protected]

Baton Rouge, LA

David Wade Marine
18150 Petroleum Dr
Baton Rouge, Louisiana
(225) 752-3789
Email: [email protected]


Spar Yard Marine
6 Spar Lane Sandy’s, MA01
Email: [email protected]

Long Island, NY

Jeff's Marine Electronics
8 Rugby Dr
Shirley, NY 11967
631-874-0070 or 631-469-1645 (cell)

Southern New Jersey

Jersey Boy Marine Electronics - 609-425-1676
Mobile Electronics Installation / FCC inspections
Cape May Court House, NJ
CONTACT: Robert Gauntt
Email: [email protected]

Installers - Do you have what it takes to be an Authorized BOE Installation Partner?  If you can demonstrate a proven track record of impeccable customer service and expert installations then we will consider adding you to this list in markets not already covered. Please email [email protected] to inquire.

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Product Questions

  • 0

It is.  You would need to connect both to a NMEA2000 network or Seatalk NG network to share data.  You would need this cable with the WX120

By James Maier on 01 April, 2021
Thank you for the vote.

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