Biospherical Instruments Inc. (BSI)

Biospherical Instruments Inc. (BSI)

Biospherical Instruments Inc. (BSI) is a research-oriented company founded in 1977 to design and manufacture scientific instrumentation for environmental monitoring. The company also has a long involvement with environmental monitoring, from the Antarctic and Arctic, to municipal drinking water reservoirs. Although it was introduced in 1978, the QSL-100 is still found in many labs throughout the world. Since its inception more than three decades ago, BSI has broadened its product line and established an international reputation as a leading manufacturer of high quality optical instruments for the oceanographic, atmospheric, water quality, and biological sciences communities. BSI’s products include terrestrial and oceanographic global UV monitoring systems, water quality monitoring systems for municipal reservoirs, and a wide variety of UV and visible wavelength radiometers for use in oceanographic and atmospheric research.

Company details

5340 Riley Street , San Diego , California 92110-2621 USA
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Business Type:
Industry Type:
Environmental Monitoring
Market Focus:
Globally (various continents)

Light striking the Teflon® irradiance sphere is integrated from all directions, much as an algal cell would collect light for photosynthesis. This irradiance-collecting sphere is still the basis for our scalar irradiance collectors, the latest of which is the AMOUR.

The National Science Foundation (NSF) Ultraviolet (UV) Monitoring Network was established in 1987 by the NSF Division of Polar Programs in response to serious ozone depletion reported in Antarctica. Biospherical Instruments installed the first instruments in 1988 and operated the network until 2009 when it was split into two networks: one under NOAA, and the other remaining at Biospherical.