Biral SWS-200

Visibility & present weather sensor

The Biral SWS-200 is designed for use in applications where accurate and reliable visibility measurements are required with the addition of WMO 4680 present weather codes. The measurement of Meteorological Optical Range (MOR), as well as reporting the presence of liquid and frozen precipitation, are key functions of the SWS-200. Precipitation is reported using WMO table 4680 codes for easy integration with aviation systems.

A feature of Biral sensors is the ability to report precipitation intensity according to a range of national standards. The backscatter receiver gives the Biral SWS-200 unparalleled abilities in distinguishing frozen from liquid precipitation, a key factor when determining the safety of aircraft operations. The 10m to 75 km visibility range makes the sensor suitable for use in meteorological observation networks and research applications.

Acoem Australasia (Ecotech Pty Ltd) is an official representative and distributor of Biral products in Australasia.


Long range
10 m to 75 km measurement range (other ranges available)
Visibility outputs
Instantaneous & averaged visibility outputs
Standard data message
WMO 4680 present weather codes
Compact design
Compact forward scatter design
Hood heating for use in extreme environments
Comprehensive self-test capabilities
Low Maintenance
Window heating and contamination monitoring
Simple interface and connectivity
Serial data output (RS232, RS422 or RS485)
Ease of integration
Analogue voltage & relay outputs (Optional analogue current output)

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