Submersible FL 3500/SM Photon Systems Instruments Categories Crops , Photosynthesis, Chlorophyll & Respiration Brochure Send Enquiry Overview PSI Submersible FL 3500/SM is underwater experiments Maximum operating depth of the instrument is ca 1 meter. The measuring compartment is equipped with a practical holder. Typical samples: Plants, corals and seaweed. Back Our Related Products OptiSciences ACM-200 plus Anthocyanin Content Meter Learn More Skye Instruments PAR Sensors Learn More Skye Instruments Leaf Area/Root Length Systems Learn More Spectrum Technologies Macroscopes Learn More