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Airmar - 120WX NMEA 0183 WeatherStation® - (No Relative Humidity) - Heater


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Product Description

Heater for Ice-prone Areas

The 120WXH has been carefully designed with a highly effective, thermostatically controlled, heating system for operation in ice-prone areas—both onshore and offshore. The heater element keeps the wind channel free of snow and ice. Reliability and performance, along with no moving parts, makes the 120WXH the model of choice in cold climates.


  • Ultrasonic measurement of apparent wind speed and direction
  • Thermostatically controlled heater element
  • Barometric pressure
  • Air temperature
  • Wind chill
  • Housing rated IPX6 for water-ingress protection
  • Data output via a single cable (various lengths available)
    • NMEA 0183 serial data protocol over RS-422 standard interface or RS-232 interface
    • NOTE: The 120WXH cannot be used with an NMEA 2000® CAN bus network. 


  • Brand: Airmar Technology
  • Air Temp Accuracy: ±1.1°C at 20°C
  • Air Temp Range: -40 to 80°C (-40 to 176°F)
  • Air Temp Resolution: 0.1°C
  • Barometric Pressure Accuracy: ±0.5 hPa at 25°C (or better)
  • Barometric Pressure Range: 300 to 1100 hPa
  • Barometric Pressure Resolution: 0.1 hPa
  • Certs And Standards: CE, IPX6, RoHS, IEC61000-4-2, IEC60945, IEC60950_1C, IEC60950_22A, EN55022, EN55024, EN14982
  • Comm Method: NMEA 0183
  • Communications Available Hardware Interface: Serial RS-232, Serial RS-422
  • Communications Available Protocol: Comma delimited ASCII, NMEA 0183
  • Communications Serial Output Rate: 1 Hz typical. User selectable. 10 Hz maximum recommended
  • Country of Origin: USA
  • Display Connector: Cable Required
  • Exterior Color: White
  • Heater Supply Current: <2.5 A (<60 W) at 24 VDC
  • Mounting Thread: Standard 1”-14 UNS (3/4” NPT optional)
  • Note: Cables sold separately
  • Operating Temp Range: -25 to 55°C (-13 to 131°F)
  • Operating Temp Range Cycles: Heater cycles on when sensor reaches 1°C
  • Operating Temp Range Heater: -40 to 55°C (-40 to 131°F)
  • Power Supply Current: <30 mA (<0.7 W) at 24 VDC
  • Power Supply Voltage: 12 to 24 VDC
  • Recommend Use: Marine and Land Based
  • RoHS Compliant: Yes
  • Sensor Connector: 10WSH
  • Waterproof Rating: IPX6
  • Weight: 325 g (0.71 lb)
  • Wind Direction Accuracy: ±3° at 10 m/s
  • Wind Direction Range: 0° to 359.9°
  • Wind Direction Resolution: 0.1°
  • Wind Speed Accuracy: 5% at 10 m/s at 4 angles
  • Wind Speed Calculations: User configurable damping
  • Wind Speed Range: 0 to 40 m/s (0 to 89 MPH)
  • Wind Speed Resolution: 0.1 m/s
  • Humidity: Not Available
  • Refurbished: No

Data Output

Serial Data Output Protocol

NMEA 0183 Sentence Structure – Comma Delimited ASCII Format
$GPDTM GPS Datum Reference
$GPGLL Geographic Position—Latitude and Longitude
$GPGSA GNSS DOP and Active Satellite
$GPGSV Satellites in View
$GPRMC Recommended Minimum GNSS
$GPZDA Time and Date
$HCHDG Heading, Deviation, and Variation
$HCHDT True Heading
$HCTHS True Heading and Status
$TIROT Rate of Turn
$WIMDA Meteorological Composite
$WIMWD Wind Direction and Speed
$WIMWV Wind Speed and Angle
$WIMWR Relative Wind Direction and Speed
$WIMWT Theoretical Wind Direction and Speed
$YXXDR Transducer Measurements


  • Owners-Guide-17-461-01-es
  • Owners-Guide-17-461-01-fr
  • Owners-Guide-17-461-01-it
  • DimensionsD-92-262-01
  • InstallationD-17-461-01
  • InstallationD-17-528-02
  • InstallationD-18932
  • WiringD-91-1019

Prop 65

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