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 Spectrum Technologies LightScout Quantum Meters Learn More Spectrum Technologies Spectrum SPAD 502 Plus Chlorophyll Meter Learn More Delmhorst D999-FR grain moisture tester Learn More Photon Systems Instruments Submersible FL 3500/SM Learn More