Biospherical Instruments Inc.  is a leading manufacturer of research-grade field and laboratory instruments for measuring light.  

aquatic instruments 

For environmental surveys, vertical profiles, coastal monitoring, or remote sensing sea truth, we have:

• PRR Profiling Reflectance Radiometer  Vertical profiles of downwelling irradiance and upwelling radiance in 9 to 19 wavebands with very wide dynamic range. 
• PUV Profiling UV Radiometer Vertical profiles of spectral downwelling UV irradiance using highly sensitive UV filter-photodetectors.
• PNF- and INF-2300 Natural Fluorometers Vertical profiles of scalar PAR (400-700 nm) and natural fluorescence as well as water temperature.
• BIC/MUV, BIR and BIS Submersible Radiometers Very low power, low cost and over 25 wavebands from which to choose.
• Single Channel sensors single channel low power optical sensors for a wide variety of applications.

terrestrial instruments  

For environmental surveys, terrestrial monitoring, or remote sensing ground truth, we have:

• WLR-2800 Water-Leaving Radiometer global irradiance, sky radiance, and water leaving radiance simultaneously without fear of saturation are important features of this family of instruments. 
• GUV Ground-based UV Radiometer
• BIC and BIS Low Cost Multichannel Reference Radiometers  scalar or cosine irradiance with very low power, low cost and over 25 wavebands from which to choose.
• MSR - QSR Scalar Irradiance Sensors

Laboratory instruments  

For general purpose (wet or dry) laboratory measurements of scalar irradiance, such as in culture vessels, incubation chambers, and photosynthetrons, we have:

• QSL Quantum Scalar Laboratory Sensor For general purpose (wet or dry) laboratory measurements of scalar irradiance, such as in culture vessels, incubation chambers, and photosynthetrons.  The QSL uses our new LOGGER₂₁₀₀ data acquisition software.  It is powered directly by the communications port on a PC. 

custom instruments  

Biospherical Instruments Inc. designs and manufactures a wide range of optical instruments.  If you do not find exactly what you are looking for, please contact us to discuss your needs. We are a research-oriented company and specialize in developing custom instruments.

We also provide instrument accessories such as cables, data acquisition systems, and travel cases, as well as data acquisition software and calibration and maintenance services.