Airmar 300WX Weather Station With Humidity - RS232 & CAN - White
The Airmar WeatherStation Instruments are unique, as they are the only weather monitoring system that can report Dynamic True and Apparent wind speed and direction/angle in one compact housing with no moving parts or external interfaces.
- 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
- 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
- Automatic baud rate detection for J1939 and ISOBUS (250 kbps / 500 kbps)
Specifications
X| Electrical | |
|---|---|
| Recommended Use | Marine or Land-Based, Mobile or Stationary |
| Humidity | Optional |
| Power Supply Voltage | 9 to 40 VDC |
| Power Supply Current | <75 mA (<0.9 W) at 12 VDC |
| Communications Available Protocol | Serial - NMEA 0183, CAN NMEA 2000, J1939, ISOBUS |
| Waterproof Rating | IP66 (IP64 with optional RH sensor installed) |
| 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 |
| Apparent Wind Speed and Angle | Yes |
| Barometric Pressure Accuracy | ±1 hPa at 25°C |
| Barometric Pressure Range | 300 to 1100 hPa |
| Barometric Pressure Resolution | 0.1 hPa |
| Certs And Standards | CE, RoHS, IEC61000-4-2, IEC60945, IEC60950_1C, IEC60950_22A, EN55022, EN55024, EN14982; Ingress Protection, IP66 |
| Communications Available Hardware Interface | Serial RS232, Serial RS422, CAN |
| Communications Serial Data Transmission Code | ASCII |
| Communications Serial Output Rate | 1 Hz typical. User selectable. 10 Hz maximum recommended |
| GNSS Position Accuracy | 2.5 m (8’) CEP ‡ |
| Mobile | Yes |
| Mounting Thread | Standard 1”-14 UNS (3/4” NPT optional) |
| NMEA 2000 LEN | 2 |
| Operating Temp Range | -25 to 55°C (-13 to 131°F) |
| Optional RH Accuracy | ±5% RH at 0 to 90% RH at 20°C |
| Optional RH Range | 0 to 100% RH |
| Optional RH Resolution | 0.1% RH |
| Pitch Roll Accuracy | ±1° in range of ±30° |
| Pitch Roll Measurement Type | MEMS |
| Pitch Roll Range | 60° |
| Pitch Roll Resolution | 0.1° |
| RH Accuracy | ±5% RH @ 0 to 90% RH @ 20°C |
| RH Range | 0 to 100% RH |
| RH Resolution | 0.1% RH |
| Stationary | Yes |
| Theoretical Wind Speed and Direction | Yes |
| Three Axis Compass Dynamic Heading Accuracy | 2° dynamic heading accuracy |
| Three Axis Compass Range | 0 to 359.9° |
| Three Axis Compass Resolution | 0.1° |
| Three Axis Compass Static Heading Accuracy | 1° static heading accuracy |
| True Wind Speed and Direction | Yes |
| Weight | 300 g (0.7 lb.) |
| Wind Direction Accuracy | 2.5° RMS @ 20 knots |
| Wind Direction Calculations | User configurable damping |
| Wind Direction Range | 0° to 359.9° |
| Wind Direction Resolution | 0.1° |
| Wind Speed Accuracy | 1.5 knots RMS @ 20 knots |
| 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 |
| Wireless Connectivity to CAST App | Yes |
Weather data is only valuable if it's accurate in the moment you need it.
The new 300WX WeatherStation from Airmar 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.