SPECTRAL RESPONSE
In 1976, LI-COR had sensor calibration data verified by the National
Research Council of Canada (NRC), one of the major standards laboratories
in the world.
* Units currently in use are photons, moles and einsteins. 1 µmol s-1 m-2 = 6.02 x 1017
photons = 1 µE s-1 m-2. Full sun plus sky PPFD is approximately 2000 µmol s-1 m-2 or 2000
µE s-1 m-2.