SWS-250 Visibility & Present Weather Sensor

Description

Overview

The SWS-250 is Biral’s (Senseca UK) most comprehensive visibility and present weather sensor, featuring both forward scatter and backscatter receivers with a 45° scatter angle for superior hydrometeor discrimination. It reports visibility MOR and up to 39 WMO Table 4680 present weather codes, making it the sensor of choice for high-accuracy aviation meteorology and national weather service networks.

Key Features

• Forward scatter at 45° with dedicated backscatter receiver for superior precipitation type discrimination
• Reports 39 WMO Table 4680 present weather codes
• Visibility measurement from 10m to beyond 50km
• Accurate distinction of rain, drizzle, snow, hail, fog, mist, and mixed precipitation
• Heated optics for reliable ice-free operation
• IP66/IP67 weatherproof and robust construction
• Hood heating for 24V AC/DC operation in freezing environments
• 3-year warranty

Applications

• ICAO-compliant civil aviation meteorological reporting
• National meteorological service AWS networks
• Military airfield operations
• Road weather and highway visibility monitoring
• Research-grade present weather observation
• Port and harbour marine weather

Why Choose the SWS-250?

The SWS-250 represents the pinnacle of Biral’s SWS sensor family. Its 45° forward scatter geometry with backscatter channel provides the best possible hydrometeor discrimination available in a compact present weather sensor. This makes it ideal for aviation authorities that require precise, unambiguous present weather reporting in compliance with ICAO standards. With a proven measurement accuracy of 5% at 1,500m and operating range from -40°C to +60°C, it performs reliably in the most challenging environments worldwide.

For detailed specifications, datasheets, and ordering information, please contact us or visit the manufacturer’s product page.