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Apogee Instruments - Model ePAR - ...

Apogee Instruments - Model ePAR -APOGEE ePAR SERIES (ePAR)

The new Apogee ePAR (extended photosynthetically active radiation) sensor was created to measure the wider 400-750 nm radiation range that cutting-edge research is showing to be photosynthetically active, beyond the traditional 400-700 nm range defined by McCree. Most of this transformative work to refine and define the ePAR range is being conducted by Dr. Shuyang Zhen and Dr. Bruce Bugbee at Utah State University.