Important Note

HOBI Labs set the standard with the world's first and best spectral backscattering sensors as well as the methods for accurately calibrating them. The performance, accuracy and capabilities of our HydroScat optical backscattering sensors are unmatched. If you're a serious scientist who demands proven accuracy in your optical backscattering measurements, don't settle for less.

Our line of HydroRad radiometers, and the WaLRUS II radiometer buoy, shown at right, provide multiple simultaneous hyperspectral measurements of irradiance and radiance, with internal logging and many other features.

The HydroRad-ES1 is a complete underwater radiometer system with built-in anti-fouling shutter, intelligent data logging, rechargeable batteries, and more...

HOBI Labs is home of a wide range of scientific-grade instruments for measuring water optical properties and the spectral light field. Our instruments are designed to operate in the harsh oceanic environment with reliability, accuracy and minimal maintenance.

Basic and applied research in aquatic optics is at HOBI Labs' core. We also provide a variety of services to universities, naval laboratories and other institutions in the area of light and optics in the aquatic environment.

The HOBI Labs a-Sphere in-situ spectral absorption meter is a revolutionary spectrophotometer that provides high-resolution, full-spectrum measurements (1500 simultaneous wavelengths in the range 360 to 750 nm) with no scattering correction required.  The measurement is made in a flow-through integrating sphere optimized for in-situ use and easy maintenance.  More...

Gamma spectral transmissometers measure attenuation at up to 8 wavelengths with no moving parts.  More...

HydroDAS data acquisition / controller systems are available in various configurations, including this package for surface buoys, containing multi-GB storage and USB interface.