Photon Systems Instruments is a technology partner of plant scientists and plant breeding companies in the effort to develop high yielding ‘Climate Smart’ crops. Over the last 26 years PSI has been developing and manufacturing innovative instruments for plant science and algae biotechnology. We are a world expert in technologies for advanced measurement and imaging of optical signals in plants and algae, particularly in the chlorophyll fluorescence/reflectance techniques. PSI Research Center provides access to state-of-the-art phenotyping technology to visiting scientist and those who wish to view our instruments in action.