200WX-IPX7 WeatherStation® Instrument

Part Number200WX-IPX7

200WX-IPX7 Airmar WeatherStation Instrument

NOTE: Airmar introduced the 300WX WeatherStation Instruments in April of 2026 to replace the 200WX models. Inventory of 200WX will be in short supply through mid 2026. Please contact our sales team about transitioning to 300WX.

Unmanned Surface Vehicle Monitoring

Reliable monitoring systems such as buoys, and USVs enable operational decision-making based on real-time, site-specific data rather than intuition. The highly changeable conditions at sea make offshore operations particularly challenging. Airmar has worked with many autonomous vehicle and buoy OEMs to develop the WeatherStation model 200WX-IPX7 that meets the operational challenges of this extremely harsh environment.

Ultrasonic measurement of apparent and dynamic true wind speed and direction
Barometric pressure
Air and wind chill temperature
GPS position, speed over ground, 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 rated IPX7 for water-ingress protection
Data output via a single cable (various lengths available)
- NMEA 0183/ASCII serial data protocol over RS-232 interface
- NMEA 2000 protocol over CAN

Recommended Use: Marine Mobile or Stationary

Humidity: Not Available

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

Waterproof Rating: IPX7

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, IPX7, RoHS, IEC61000-4-2, IEC60945, IEC60950_1C, IEC60950_22A, EN55022, EN55024, EN14982

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

GPS Position Accuracy: 2.5 m (8’) CEP

Mobile: Yes

Mounting Thread: Standard 1”-14 UNS (3/4” NPT optional)

NMEA 2000 LEN: 2

Note: Cables sold separately unless otherwise specified

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

Pitch Roll Accuracy: ±1° in range of ±30°

Pitch Roll Measurement Type: MEMS

Pitch Roll Range: 60°

Pitch Roll Resolution: 0.1°

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

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: 2 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

Serial Data Output Protocol

NMEA 0183 Sentence Structure – Comma Delimited ASCII Format
$GPDTM	GPS Datum Reference
$GPGGA	GPS Fix Data
$GPGLL	Geographic Position—Latitude and Longitude
$GPGSA	GNSS DOP and Active Satellite
$GPGSV	Satellites in View
$GPRMC	Recommended Minimum GNSS
$GPVTG	COG and SOG
$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

CAN Data Output Protocol

NMEA 2000^® Output Message Structure
59392	ISO Acknowledgement
060928	ISO Address Claim
126208	Acknowledge Group Function
126464	PGN List
126992	System Time
126996	Product Information
126998	Configuration Information
127250	Vessel Heading
127251	Rate of Turn
127257	Attitude
127258	Magnetic Variation
129025	Position and Rapid Update
129026	COG and SOG, Rapid Update
129029	GNSS Position Data
129033	Time and Date
129044	Datum
129538	GNSS Control Status
129539	GNSS DOPs
129540	GNSS Sats in View
130306	Wind Data
130310	Environmental Parameters
130311	Environmental Parameters
130312	Temperature
130313	Humidity
130314	Actual Pressure
130323	Meteorological Station Data