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Solar Light Company, Inc. is the world’s leading manufacturer of premium Atmospheric Instrumentation Products, including the innovative Microtops II® portable Sunphotometers and Ozonometers, the field-proven 501-Series Radiometers and Biometers for permanent outdoor installations, and the pioneering Model 511 UV Warning Signal® device. These precision instruments are heavily relied upon by the most prestigious meteorological observatories, weather stations, and research agencies in the world including NASA, the Australian Radiation Protection and Nuclear Safety Agency (ARPANSA,) the Natural Resource Ecology Laboratory (NREL,) and countless others.

Model 540 Microtops II® Sunphotometer

Solar Light’s Model 540 Microtops II® Sunphotometer is a light weight, portable 5 channel instrument for measuring aerosol optical thickness, direct solar irradiance, and water vapor column easily, accurately and dependably.

Model 521 Microtops II® Ozonometer

Solar Light’s Model 521 Microtops II® is a 5 channel hand-held ozonometer for measuring total ozone column per standard WMO configuration easily, accurately and dependably

Model 520 Microtops II® Ozonometer

Solar Light’s Model 520 Microtops II® is a 3 channel hand-held ozonometer for measuring total ozone column per standard WMO configuration easily, accurately and dependably.

Model 501 UV Biometer Radiometer

Solar Light’s Model 501 Series Biometer-Radiometers are rugged meteorological-grade instruments which measure erythemally-weighted UVB solar radiation outdoors and underwater (up to 16.4 feet / 5 meters maximum depth.)

Model 501 UVA Radiometer

Solar Light’s Model 501 Series Radiometers are rugged meteorological-grade instruments which measure UVA solar radiation outdoors and underwater (up to 16.4 feet / 5 meters maximum depth.)

Model 501 UVA+B Radiometer

Solar Light’s Model 501 Series Radiometers are rugged meteorological-grade instruments which measure UVA+B solar radiation outdoors and underwater (up to 16.4 feet / 5 meters maximum depth.)

Model 501 UVB Radiometer

Solar Light’s Model 501 Series Radiometers are rugged meteorological-grade instruments which measure UVB solar radiation outdoors and underwater (up to 16.4 feet / 5 meters maximum depth.)

Model 511 UV Warning Signal™

The Model 511 UV Warning Signal is designed to provide a real-time indication of the sun’s UV intensity in an easy to read package, designed specifically for outdoor areas such as golf courses, country clubs, school yards, outdoor sporting events, amusement parks, ski slopes, beaches, and swimming pools.