Airmar 200WX NMEA 0183 / 2000® WeatherStation® – (No Relative Humidity) – RS232 – IPX7

The Airmar 200WX WeatherStation® with the specified configuration (No Relative Humidity, RS232, IPX7) is a compact, high-performance, and multi-sensor weather monitoring instrument designed for a wide range of marine, land-based, and industrial applications. It provides accurate, real-time meteorological data for navigation, weather forecasting, safety, and operational efficiency.

Key Features and Description:

Multi-Sensor Design: The 200WX integrates several sensors into a single, compact, and durable housing. This eliminates the need for multiple discrete instruments, simplifying installation and maintenance.
Ultrasonic Wind Sensor: This is a core component. It uses four ultrasonic transducers to measure apparent wind speed and direction with no moving parts. This design significantly improves durability and reliability compared to traditional cup-and-vane anemometers, as there are no parts to wear out or freeze.
GPS Receiver: An integrated high-accuracy GPS receiver provides essential navigation data, including:
- Latitude and Longitude
- Speed Over Ground (SOG)
- Course Over Ground (COG)

Technical Specification

Here are the detailed technical specifications for the Airmar 200WX NMEA 0183 / 2000® WeatherStation® – (No Relative Humidity) – RS232 – IPX7:

General:

Product Type: All-in-one Ultrasonic Weather and Motion Sensor
Part Number (Common variants): 44-849-1-01 (This specific RS232, no RH version)
Sensors Included: Ultrasonic Wind, Air Temperature, Barometric Pressure, GPS, 3-Axis Solid-State Compass, 3-Axis Rate Gyro, 3-Axis Accelerometer.
Relative Humidity (RH): Not included in this specific model.

Performance Data (Measurements & Accuracy):

Wind Speed:
- Range: 0 to 40 m/s (0 to 89 MPH, 0 to 78 knots)
- Accuracy: ±5% at 10 m/s at 4 angles
- Resolution: 0.1 m/s
- Calculations: User configurable damping, provides Apparent and Dynamic True Wind.
Wind Direction:
- Range: 0° to 359.9°
- Accuracy: ±3° at 10 m/s
- Resolution: 0.1°
- Calculations: User configurable damping.
Air Temperature:
- Range: -40°C to 80°C (-40°F to 176°F)
- Accuracy: ±1.1°C at 20°C
- Resolution: 0.1°C
- Calculated Values: Wind Chill
Barometric Pressure:
- Range: 300 to 1100 hPa
- Accuracy: ±0.5 hPa at 25°C (or better)
- Resolution: 0.1 hPa
GPS:
- Update Rate: 10 Hz
- Position Accuracy: 3 m (10′) CEP (Circular Error Probable)
- Data Provided: Position, Speed Over Ground (SOG), Course Over Ground (COG), Time-stamping.
3-Axis Compass:
- Range: 0 to 359.9°
- Accuracy: 1° static heading accuracy; 2° dynamic heading accuracy
- Resolution: 0.1°
- Features: Dynamic stabilization.
3-Axis Rate Gyro: Provides Rate-of-Turn data.
3-Axis Accelerometer:
- Measurement Type: MEMS
- Pitch & Roll Range: ±50°
- Pitch & Roll Accuracy: ±1° in range of ±30°
- Resolution: 0.1°

Electrical:

Supply Voltage: 9 VDC to 40 VDC
Supply Current (at 12 VDC): <75 mA (<0.9 W)
NMEA 2000® Load Equivalency Number (LEN): 2

Communications:

Available Hardware Interfaces:
- Serial RS232
- CAN (for NMEA 2000®)
Available Protocols:
- NMEA 0183 (Comma-delimited ASCII format over RS232)
- NMEA 2000® (over CAN bus)
Serial Output Rate: 1 Hz typical, user selectable, 10 Hz maximum recommended.
NMEA 0183 Sentences Supported (Examples): $GPDTM, $GPGGA, $GPGLL, $GPGSA, $GPGSV, $GPRMC, $GPVTG, $GPZDA, $HCHDG, $HCHDT, $HCTHS, $TIROT, $WIMDA, $WIMWD, $WIMWV, $WIMWR, $WIMWT, $YXXDR
NMEA 2000® PGNs Supported (Examples): 126992 (System Time), 126996 (Product Information), 127250 (Vessel Heading), 127257 (Attitude), 129025 (Position), 130306 (Wind Data), 130310 (Environmental Parameters), 130312 (Temperature).

Physical & Environmental:

Dimensions (approximate):
- Diameter: 72 mm (2.83 inches)
- Height (top of dome to base): 131 mm (5.16 inches)
- Mounting Base Diameter: 45 mm (1.77 inches)
Weight: 300 grams (0.7 lb)
Mounting Thread Size on Base: Standard 1″-14 UNS (3/4″ NPT optional)
Housing Material: Durable, UV-resistant plastic (likely ABS or similar marine-grade polymer).
Ingress Protection (IP) Rating: IPX7 (Protected against effects of immersion in water for 30 minutes at depths between 15 cm and 1m).
Operating Temperature Range: -25°C to +55°C (-13°F to 131°F)
Storage Temperature Range: -25°C to +70°C (-13°F to 158°F)
Certifications and Standards: CE, IPX7, RoHS, IEC61000-4-2, IEC60945, IEC60950_1C, IEC60950_22A, EN55022, EN55024, EN14982.