--- title: "Airmar Weather Stations | Aethair" description: "Airmar ultrasonic WeatherStations in the Aethair sensor catalog: 13 models for wind, pressure, temperature, and humidity, connected through Thiamis." url: https://aethair.io/sensors/airmar-weather-stations/ --- Sensors · Weather Stations # Airmar Weather Stations Airmar WeatherStation instruments (compact, maintenance-free ultrasonic multisensors with no moving parts) measure apparent wind, barometric pressure, air temperature, and wind chill in one housing. An optional field-serviceable humidity module adds relative and absolute humidity, dew point, and heat index. GPS/compass models (from the 150WX up to the 2026 300WX flagship) add dynamic true wind, position, and compass and rate-gyro stabilization. The 150WXRS also adds acoustic rainfall. [Schedule a call](https://calendly.com/d/ctdd-mkr-v9v/aethair-demo-website) [Build a Configuration](https://aethair.io/build/?params=temperature,humidity,absolute_humidity,pressure,dew_point,wind_speed,wind_direction,wind_chill) At a glance **11** parameters **13** models [**Connects via Thiamis** RS-232 · NMEA 0183](https://aethair.io/products/thiamis/) Measures ## What Airmar Weather Stations Measure 11 parameters, each linked to its page: the sensors, units, and standards behind it. [Air Temperature °C / °F](https://aethair.io/parameters/temperature/) [Relative Humidity %](https://aethair.io/parameters/humidity/) [Absolute Humidity %](https://aethair.io/parameters/absolute_humidity/) [Barometric Pressure inHg / mmHg / bar / hPa](https://aethair.io/parameters/pressure/) [Dew Point °C / °F](https://aethair.io/parameters/dew_point/) [Wind Speed kn / mph / m/s](https://aethair.io/parameters/wind_speed/) [Wind Direction °](https://aethair.io/parameters/wind_direction/) [Wind Chill °C / °F](https://aethair.io/parameters/wind_chill/) [Heat Index °C / °F](https://aethair.io/parameters/heat_index/) [Precipitation mm / s](https://aethair.io/parameters/precipitation/) [Precipitation Intensity mm/h / in/h](https://aethair.io/parameters/precip_intensity/) [Connects via **Thiamis**](https://aethair.io/products/thiamis/) Wired interface [RS-232 NMEA 0183](https://aethair.io/products/thiamis/#port-rs232) Models ## Airmar Weather Stations Models 13 models, each with what it measures and the ranges its datasheet gives. | Model | Description | Measures & specs | | - | - | - | | **110WX** | Entry ultrasonic WeatherStation for fixed marine or land sites: apparent wind speed/direction, barometric pressure, air temperature, and calculated wind chill; an optional field-serviceable RH module adds dew point and heat index. No true wind or GPS. IPX6. | [Air Temperature](https://aethair.io/parameters/temperature/) [Relative Humidity](https://aethair.io/parameters/humidity/) [Absolute Humidity](https://aethair.io/parameters/absolute_humidity/) [Barometric Pressure](https://aethair.io/parameters/pressure/) [Dew Point](https://aethair.io/parameters/dew_point/) [Wind Speed](https://aethair.io/parameters/wind_speed/) [Wind Direction](https://aethair.io/parameters/wind_direction/) [Wind Chill](https://aethair.io/parameters/wind_chill/) [Heat Index](https://aethair.io/parameters/heat_index/) | | **110WXS** | Land-based stationary entry model with a solar-radiation shield and standard relative humidity: apparent wind, barometric pressure, air temperature, wind chill, plus calculated dew point and heat index. IPX4. | [Air Temperature](https://aethair.io/parameters/temperature/) [Relative Humidity](https://aethair.io/parameters/humidity/) [Absolute Humidity](https://aethair.io/parameters/absolute_humidity/) [Barometric Pressure](https://aethair.io/parameters/pressure/) [Dew Point](https://aethair.io/parameters/dew_point/) [Wind Speed](https://aethair.io/parameters/wind_speed/) [Wind Direction](https://aethair.io/parameters/wind_direction/) [Wind Chill](https://aethair.io/parameters/wind_chill/) [Heat Index](https://aethair.io/parameters/heat_index/) | | **120WX** | Recreational-marine sibling of the 110WX: apparent wind, barometric pressure, air temperature, and wind chill; an optional RH module adds dew point and heat index. IPX6. No longer manufactured. | [Air Temperature](https://aethair.io/parameters/temperature/) [Relative Humidity](https://aethair.io/parameters/humidity/) [Absolute Humidity](https://aethair.io/parameters/absolute_humidity/) [Barometric Pressure](https://aethair.io/parameters/pressure/) [Dew Point](https://aethair.io/parameters/dew_point/) [Wind Speed](https://aethair.io/parameters/wind_speed/) [Wind Direction](https://aethair.io/parameters/wind_direction/) [Wind Chill](https://aethair.io/parameters/wind_chill/) [Heat Index](https://aethair.io/parameters/heat_index/) | | **120WXH** | Heated 120WX for ice-prone sites with a thermostatically controlled wind-channel heater: apparent wind, barometric pressure, air temperature, and wind chill; NMEA 0183 only (no NMEA 2000). IPX6. No longer manufactured. | [Air Temperature](https://aethair.io/parameters/temperature/) [Barometric Pressure](https://aethair.io/parameters/pressure/) [Wind Speed](https://aethair.io/parameters/wind_speed/) [Wind Direction](https://aethair.io/parameters/wind_direction/) [Wind Chill](https://aethair.io/parameters/wind_chill/) | | **150WX** | Land/mobile ultrasonic model adding 10 Hz GPS and a two-axis compass for theoretical (true) wind: apparent and true wind, barometric pressure, air temperature, wind chill, GPS position/SOG/COG, and pitch/roll; an optional RH module adds dew point and heat index. IPX6. No longer manufactured. | [Air Temperature](https://aethair.io/parameters/temperature/) [Relative Humidity](https://aethair.io/parameters/humidity/) [Absolute Humidity](https://aethair.io/parameters/absolute_humidity/) [Barometric Pressure](https://aethair.io/parameters/pressure/) [Dew Point](https://aethair.io/parameters/dew_point/) [Wind Speed](https://aethair.io/parameters/wind_speed/) [Wind Direction](https://aethair.io/parameters/wind_direction/) [Wind Chill](https://aethair.io/parameters/wind_chill/) [Heat Index](https://aethair.io/parameters/heat_index/) | | **150WXRS** | Land-based stationary model that adds maintenance-free acoustic rain (accumulation, duration, intensity) to the 150WXS: apparent and dynamic true wind, barometric pressure, air temperature, 10 Hz GPS, a three-axis stabilized compass, rate gyro, pitch/roll, and standard RH with dew point and heat index. IPX4. | [Air Temperature](https://aethair.io/parameters/temperature/) [Relative Humidity](https://aethair.io/parameters/humidity/) [Absolute Humidity](https://aethair.io/parameters/absolute_humidity/) [Barometric Pressure](https://aethair.io/parameters/pressure/) [Dew Point](https://aethair.io/parameters/dew_point/) [Wind Speed](https://aethair.io/parameters/wind_speed/) [Wind Direction](https://aethair.io/parameters/wind_direction/) [Wind Chill](https://aethair.io/parameters/wind_chill/) [Heat Index](https://aethair.io/parameters/heat_index/) [Precipitation](https://aethair.io/parameters/precipitation/) [Precipitation Intensity](https://aethair.io/parameters/precip_intensity/) | | **150WXS** | Land-based stationary ultrasonic model with a solar shield and standard RH: apparent and dynamic true wind, barometric pressure, air temperature, 10 Hz GPS, a two-axis compass, and pitch/roll, plus calculated dew point and heat index. IPX4. | [Air Temperature](https://aethair.io/parameters/temperature/) [Relative Humidity](https://aethair.io/parameters/humidity/) [Absolute Humidity](https://aethair.io/parameters/absolute_humidity/) [Barometric Pressure](https://aethair.io/parameters/pressure/) [Dew Point](https://aethair.io/parameters/dew_point/) [Wind Speed](https://aethair.io/parameters/wind_speed/) [Wind Direction](https://aethair.io/parameters/wind_direction/) [Wind Chill](https://aethair.io/parameters/wind_chill/) [Heat Index](https://aethair.io/parameters/heat_index/) | | **200WX** | Sensor-rich mobile WeatherStation: apparent and dynamic true wind, barometric pressure, air temperature, wind chill, 10 Hz GPS (position/SOG/COG), a three-axis stabilized compass, rate gyro (rate-of-turn), and pitch/roll; an optional field-serviceable RH module adds dew point and heat index. IPX6. Superseded by the 300WX in 2026. | [Air Temperature](https://aethair.io/parameters/temperature/) [Relative Humidity](https://aethair.io/parameters/humidity/) [Absolute Humidity](https://aethair.io/parameters/absolute_humidity/) [Barometric Pressure](https://aethair.io/parameters/pressure/) [Dew Point](https://aethair.io/parameters/dew_point/) [Wind Speed](https://aethair.io/parameters/wind_speed/) [Wind Direction](https://aethair.io/parameters/wind_direction/) [Wind Chill](https://aethair.io/parameters/wind_chill/) [Heat Index](https://aethair.io/parameters/heat_index/) | | **200WX-IPX7** | Waterproof (IPX7) 200WX for buoys and unmanned surface vessels; the same suite without the RH option: apparent and dynamic true wind, barometric pressure, air temperature, wind chill, GPS, a three-axis stabilized compass, rate gyro, and pitch/roll. Superseded by the 300WX-IP67 in 2026. | [Air Temperature](https://aethair.io/parameters/temperature/) [Barometric Pressure](https://aethair.io/parameters/pressure/) [Wind Speed](https://aethair.io/parameters/wind_speed/) [Wind Direction](https://aethair.io/parameters/wind_direction/) [Wind Chill](https://aethair.io/parameters/wind_chill/) | | **220WX** | Commercial-fishing WeatherStation: apparent and theoretical (true) wind, barometric pressure, air temperature, wind chill, 10 Hz GPS, a three-axis stabilized compass, rate gyro, and pitch/roll; an optional RH module adds dew point and heat index. IPX6. No longer manufactured. | [Air Temperature](https://aethair.io/parameters/temperature/) [Relative Humidity](https://aethair.io/parameters/humidity/) [Absolute Humidity](https://aethair.io/parameters/absolute_humidity/) [Barometric Pressure](https://aethair.io/parameters/pressure/) [Dew Point](https://aethair.io/parameters/dew_point/) [Wind Speed](https://aethair.io/parameters/wind_speed/) [Wind Direction](https://aethair.io/parameters/wind_direction/) [Wind Chill](https://aethair.io/parameters/wind_chill/) [Heat Index](https://aethair.io/parameters/heat_index/) | | **220WXH** | Heated commercial WeatherStation (12-24 VDC): apparent and dynamic true wind, barometric pressure, air temperature, 10 Hz GPS, a three-axis stabilized compass, rate gyro, and pitch/roll; no RH, NMEA 0183 only. IPX4. | [Air Temperature](https://aethair.io/parameters/temperature/) [Barometric Pressure](https://aethair.io/parameters/pressure/) [Wind Speed](https://aethair.io/parameters/wind_speed/) [Wind Direction](https://aethair.io/parameters/wind_direction/) [Wind Chill](https://aethair.io/parameters/wind_chill/) | | **300WX** | New-for-2026 ultrasonic flagship replacing the 200WX: apparent and dynamic true wind, barometric pressure, air temperature, GNSS (position/COG/SOG), a three-axis stabilized compass, rate gyro, and pitch/roll; an optional field-serviceable RH module adds dew point and heat index. Bluetooth/CAST app, J1939, and ISOBUS output. IP64. | [Air Temperature](https://aethair.io/parameters/temperature/) [Relative Humidity](https://aethair.io/parameters/humidity/) [Absolute Humidity](https://aethair.io/parameters/absolute_humidity/) [Barometric Pressure](https://aethair.io/parameters/pressure/) [Dew Point](https://aethair.io/parameters/dew_point/) [Wind Speed](https://aethair.io/parameters/wind_speed/) [Wind Direction](https://aethair.io/parameters/wind_direction/) [Wind Chill](https://aethair.io/parameters/wind_chill/) [Heat Index](https://aethair.io/parameters/heat_index/) | | **300WX-IP67** | New-for-2026 waterproof flagship replacing the 200WX-IPX7. It carries the same suite as the 300WX without RH (apparent and dynamic true wind, barometric pressure, air temperature, GNSS, a three-axis stabilized compass, rate gyro, and pitch/roll), plus Bluetooth/CAST app, J1939, and ISOBUS output. IP67, built for offshore, buoys, and USVs. | [Air Temperature](https://aethair.io/parameters/temperature/) [Barometric Pressure](https://aethair.io/parameters/pressure/) [Wind Speed](https://aethair.io/parameters/wind_speed/) [Wind Direction](https://aethair.io/parameters/wind_direction/) [Wind Chill](https://aethair.io/parameters/wind_chill/) | Solutions ## Where Airmar Weather Stations Are Used Solutions whose recommended configuration uses this instrument or whose standards it is built to, followed by solutions whose core panel it partly measures. ### [Hydrology, Level & Flow](https://aethair.io/solutions/hydrology/) Flood warning, stream gauging, and groundwater ### [Weather Stations & Meteorology](https://aethair.io/solutions/weather/) Professional multi-parameter weather monitoring On the platform ## What Airmar Weather Stations Get From Aethair Connected through Thiamis, its readings arrive in the same Environet account as Aethair's own monitors. ### [Live data and alerts](https://aethair.io/platform/environet/) [Environet](https://aethair.io/platform/environet/) shows the instrument live and alerts the people you choose by email, SMS, and webhook, at the thresholds you set. [Noesis](https://aethair.io/platform/noesis/) sets up a dashboard, a report, or an alert from a plain-text request. ### [Compliance reports](https://aethair.io/platform/reports/) [Aethair Reports](https://aethair.io/platform/reports/) produces scheduled or on-demand reports from the instrument's readings, as a PDF or secure link. Templates cover Aethair Blue, WELL v2, cabin air (ISO 23875), and the CMS-2567 healthcare codebook (ASHRAE 170), or you can report against custom limits such as OSHA PELs, NAAQS, EPA guidance, or your own program limits. ### [Dashboards and the app](https://aethair.io/platform/dashboards/) Environet dashboards and the [Aethair App](https://aethair.io/platform/app/) show the instrument's readings just like any Aethair device. The occupant-facing [Aethair Dashboards](https://aethair.io/platform/dashboards/) status display is built around Aethair IAQ and Aethair PRO. Similar ## Other Weather Stations ### [Davis](https://aethair.io/sensors/davis-weather-stations/) [Weather Stations](https://aethair.io/sensors/davis-weather-stations/) [Davis Instruments weather stations. The Vantage Pro2 and Vantage Vue are modern integrated stations…](https://aethair.io/sensors/davis-weather-stations/) ### [Gill Instruments](https://aethair.io/sensors/gill-instruments-weather-stations/) [Weather Stations](https://aethair.io/sensors/gill-instruments-weather-stations/) [Gill MaxiMet GMX-series compact ultrasonic weather stations. Each model carries a different subset…](https://aethair.io/sensors/gill-instruments-weather-stations/) ### [Lufft](https://aethair.io/sensors/lufft-weather-stations/) [Weather Stations](https://aethair.io/sensors/lufft-weather-stations/) [Lufft WS-series compact all-in-one weather sensors (UMB over RS485). One maintenance-free housing…](https://aethair.io/sensors/lufft-weather-stations/) ### [R.M. Young](https://aethair.io/sensors/r-m-young-weather-stations/) [Weather Stations](https://aethair.io/sensors/r-m-young-weather-stations/) [R.M. Young ResponseONE weather instruments, with solid-state ultrasonic wind sensing and no moving…](https://aethair.io/sensors/r-m-young-weather-stations/) Questions ## Airmar Weather Stations FAQ What data does an Airmar WeatherStation output, and what is WIMDA? Airmar WeatherStations stream NMEA 0183 sentences at 4800 baud (and NMEA 2000 over CAN). WIMDA is the 'meteorological composite' sentence: one message carrying barometric pressure, air temperature, relative and absolute humidity, and dew point. Wind speed and angle arrive in the WIMWV sentence, while calculated wind chill and heat index, and rainfall (accumulation, duration, and intensity), come as transducer (XDR) sentences. What is the difference between apparent and dynamic true wind? Apparent wind is what the sensor measures: the actual wind combined with the platform's own motion. Dynamic true wind is the real wind over ground, which the GPS/compass models (150WX and up, including the 300WX) derive by removing the platform's own speed and heading from the apparent wind. Wind-only models such as the 110WX report apparent wind only. Does the Airmar have moving parts or need calibration? No. Wind is measured ultrasonically by timing sound between transducers, so there are no cups or vanes to wear out or ice up. It is maintenance-free with no field calibration. The heated models (120WXH, 220WXH) add a thermostatic element that keeps the wind channel clear of snow and ice. Which parameters need the optional humidity module? Relative and absolute humidity, dew point, and heat index all come from the field-serviceable RH module; wind, barometric pressure, air temperature, and wind chill are always reported without it. RH is standard on the land models (110WXS, 150WXS, 150WXRS), optional on most others, and unavailable on the sealed models (200WX-IPX7, 220WXH, 300WX-IP67). Sources: [www.airmar.com](https://www.airmar.com/Catalog/Commercial-Scientific/WeatherStations) · [www.airmar.com](https://www.airmar.com/Product/200WX)