Skip to content
Enjoy 8% OFF Everything for Memorial Day Sale | code: GOODMEMORIAL | Expires 5/29 Midnight CST
Enjoy 8% OFF Everything for Memorial Day Sale | code: GOODMEMORIAL | Expires 5/29 Midnight CST

Airmar 120WXH Marine Weather Station with Heater

Save $106.00
Original price $1,356.00
Current price $1,250.00

Free Shipping US Wide, Over $199

Easy 30 Day Returns

Best Price Guarantee

Expert Customer Service

why you should buy from weather scientific

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.

  • Wind Speed and Direction
  • Air Temperature
  • Low Temperature Operations
  • Barometric Pressure
  • Power Supply
  • Data Input/Output


  • 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.
  • Weight: 325 g (0.7 lb.)
  • Wind Speed:
    • Range: 0 to 40 m/s
    • Accuracy: 5% at 10 m/s at 4 angles
    • Resolution: 0.1 m/s
    • Calculations: User configurable damping
  • Wind Direction:
    • Range: 0 to 359.9°
    • Accuracy: ±3° at 10 m/s
    • Resolution: 0.1°
    • Calculations: User configurable damping
  • Air Temperature:
    • Range: -40 to 80°C (-40 to 176°F)
    • Accuracy: ±1.1°C at 20°C
    • Resolution: 0.1°C
  • Barometric Pressure:
    • Range: 300 to 1100 hPa
    • Accuracy: ±0.5 hPa at 25°C (or better)
    • Resolution: 0.1 hPa
  • Operating Temperature Range:
    • WeatherStation: -25 to 55°C (-13 to 131°F)
    • Heater: -40 to 55°C (-40 to 131°F)
    • Heater cycles on when sensor reaches 1°C
  • Power:
    • Supply Voltage: 12 to 24 VDC
    • Supply Current: <30 mA (<0.7 W) at 24 VDC
    • Heater Supply Current: <2.5 A (<60 W) at 24 VDC
  • Communications:
    • Available Interface: Serial RS-232, Serial RS-422
    • Available Protocol: Comma delimited ASCII, NMEA 0183
    • Serial Output Rate: 1 Hz typical. User selectable. 10 Hz maximum recommended
  • Mounting-thread Size on Base: Standard 1"-14 UNS (3/4" NPT optional)
  • Certifications and Standards: CE, IPX6, RoHS, IEC61000-4-2, IEC60945, IEC60950_1C, IEC60950_22A, EN55022, EN55024, EN15014982

Note: Cables sold separately

Shipping is fast and FREE across the USA for all orders $199 or more. For more details about shipping see the full shipping page here.

We offer 30 Day Easy Returns. If you decide you don't need a product we'll take it back so long as it is in original and re-saleable condition. See the full details here.

Found a better price online? We'll match it or beat it if we can. 

All you need to do is let us know via phone or email ( and we'll let you know what we can do.

You will need to provide evidence of the better price online and it must include any shipping or taxes charged by that site. i.e. It needs to be the total price.

This only applies to new products, it does not apply to used condition products.