The sensor measures: visibility (MOR, EXCO and TEXCO), fog, haze, drizzle, snow, hail and other non-frozen precipitation according to WMO 4680. METAR coded outputs are also provided.

For ultimate visibility performance the visual range extends to 75 km allowing use in meteorological observation networks and research applications. The enhanced present weather information from the SWS-250 is due to the back scatter receiver which allows detailed precipitation analysis and use of the advanced algorithms.

Easy integration of the Biral ALS-2 ambient light sensor makes the SWS-250 perfect for use in aviation application where both RVR and METAR data are needed. Calibration in the field can be accomplished quickly and simply by a single operator using the optional calibration kit.

FEATURES

• WMO TABLE 4680 & METAR OUTPUTS
• INSTANTANEOUS AND AVERAGED VISIBILITY OUTPUTS
• ATMOSPHERIC EXTINCTION COEFFICIENT (EXCO)
• EASY INTEGRATION OF ALS-2 AMBIENT LIGHT SENSOR
• 3 YEARS WARRANTY
• PRESENT AND PAST WEATHER CODES
• 39 WMO 4680 CODES
• SIMPLE FIELD CALIBRATION