Real-Time, Site-Specific
Weather Information
The LB150 Ultrasonic WeatherStation® Instrument meets a
growing need for real-time, site-specific weather information.
Accurate data helps organizations make important decisions
regarding weather conditions that affect safety and operations.
Traditional weather instrumentation is composed of several
individual sensors including wind cups, which are prone to
breaking and are less accurate at low speeds. Airmar’ s
WeatherStation Instrument incorporates seven sensors, with no
moving parts, all in one compact unit

Applications
• Agriculture
• Buildings
• Chemical processing
• Hazardous response
• Outdoor leisure centers
• Renewable energy
• Road weather conditions
• Structural monitoring

Features
• No moving parts— maintenance-free operation
• True wind speed and direction
• Apparent wind speed and direction
• Barometric pressure
• Air and wind chill temperature
• Heat index temperature
• Relative humidity
• Dew point temperature
• Measures wind speed and direction ultrasonically
• Internal WAAS/ EGNOS GPS
• Two-axis solid-state compass
• Three-axis accelerometer provides stabilized pitch and
roll information
• Plastic housing is less prone to lightning strikes
• RS232 or RS422 output
• WeatherCaster™ Software
• 360° calibration results in precise wind direction accuracy
• Easy installation and two-year warranty
• Custom configurations available

SPECIFICATIONS
Wind Speed Range: 0 m/ s to 40 m/ s ( 0 MPH to 92 MPH)
Wind Speed Resolution: 0.1 m/ s ( 0.1 MPH)
Wind Speed Accuracy @ 0° C to 55° C ( 32° F to 131° F) ,
no precipitation* :
— Low Wind Speeds: 0 m/ s to 5 m/ s ( 0 MPH to 11.5 MPH) ;
RMS error of 0.5 m/ s ( 1.1 MPH) 10% of reading
— High Wind Speeds: 5 m/ s to 40 m/ s ( 11.5 MPH to 92 MPH) ;
RMS error of 1 m/ s ( 2.3 MPH) or 5% RMS,
whichever is greater
Wind Speed Accuracy in wet conditions* * : 2.5 m/ s ( 5.7 MPH) RMS
Wind Direction Range: 0° to 360°
Wind Direction Resolution: 0.1°
Wind Direction Accuracy @ 0° C to 55° C ( 32° F to 131° F) ,
no precipitation* :
— Low Wind Speeds: 2 m/ s to 5 m/ s ( 4.6 MPH to 11.5 MPH) — 5° RMS typical
— High Wind Speeds: > 5 m/ s ( > 11.5 MPH) — 2° RMS typical
Wind Direction Accuracy in wet conditions* * :
> 4 m/ s ( 9.2 MPH) — 8° RMS typical
Compass Accuracy: 1° RMS when level
Pitch and Roll Range / Accuracy: ± 50° / 4 knots ( > 4.6 MPH) wind
Barometric Pressure Range:
300 mbar to 1100 mbar ( 8.86 inHg to 32.48 inHg, 300 hPa to 1100 hPa)
Barometric Pressure Resolution: 0.1 mbar ( 0.029 inHg, 0.1 hPa)
Barometric Pressure Accuracy:
± 2 mbar ( ± 0.059 inHg, ± 2 hPa) when altitude correction is available
Relative Humidity Range: 10% to 95% RH
Relative Humidity Accuracy* : ± 4% units RH
GPS Position Accuracy:
3 m ( 10’ ) with WAAS/ EGNOS ( 95% of the time, SA off)
Operating Temperature Range: -25° C to 55° C ( -13° F to 131° F)
Supply Voltage: 9 VDC to 16 VDC