The Odyssey® photosynthetic irradiance recording system is a low cost integrating light sensor, providing high resolution data in the wavelength range of 400 to 700nm. Both the recorder and sensor are included in one encapsulated water proof housing for use in air or under water.

The loggers are supplied uncalibrated and require calibration against a reference meter. This ensures the best possible performance tailored to your requirements. Available with an internal counter weight to aid deployment in underwater environments.

The new Odyssey® P.A.R. Wiper and mounting bracket system has been designed to be used with the Odyssey® P.A.R loggers to keep the P.A.R. logger sensor window clean from bio-fouling.   

Independent White Paper:
The American Society of Limnology and Oceanography, Inc.
A comparison and correction of light intensity loggers to photosynthetically active radiation sensors.
Matthew H. Long, Jennie E. Rheuban, Peter Berg, Joseph C. Zieman. 2012. Limnology and Oceanography: Methods 10:416-42

How does the Odyssey Logger perform and compare? ...Read

Choose from the new Xtreem wireless logger or the older Classic logger. To help you select your logger, the table below summarises the differences between the two versions.

PAR Xtreem-Classic Comparison