The SWS-250 is the most capable model in the SWS range, delivering advanced present weather classification in a compact format. Alongside forward-scatter measurement, it uses a dedicated backscatter channel to strengthen identification of precipitation types and provide reliable separation of frozen and non-frozen precipitation—particularly valuable when accuracy matters most.
For visibility, the SWS-250 reports MOR (and EXCO) across a default 10 m–75 km range, with the maximum configurable up to ~99 km via a simple configuration command. With selectable 1 m or 10 m resolution, it supports both fine-grained detection in low-visibility events and consistent reporting in clear-air conditions.
Built for long-term outdoor deployment, the SWS-250 includes window heaters, heated hoods, and automatic contamination monitoring as standard—helping reduce cleaning frequency while protecting measurement quality. It also supports both WMO Table 4680 and METAR present and past weather codes, making it a strong fit for regulated aviation environments and high-spec national networks.
Key features
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Visibility reporting: MOR + EXCO (default 10 m–75 km, max configurable up to ~99 km)
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Enhanced present weather classification using forward-scatter plus a dedicated backscatter channel
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Output formats: WMO 4680 and METAR present & past weather codes
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Interfaces: RS232 / RS422 / RS485 (optional ALS-2 integration for RVR systems)
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Standard heating + contamination monitoring to maintain performance in harsh weather
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3-year warranty
Typical applications
Aviation (AWOS/RVR) and METAR reporting, national/regional weather station networks, coastal and industrial monitoring, and road weather / transport safety systems.
Click here for full details on the SWS-250 on Senseca UK website.
SWS250
