OxyCorder 401 Photon Systems Instruments Categories Crops , Photosynthesis, Chlorophyll & Respiration Brochure Send Enquiry Overview PSI OxyCorder 401 the primary application of the instrument is the polarographic measurement of dissolved oxygen by a Clark electrode. Used to measure dissolved oxygen in photosynthesis research. Back Our Related Products Eijkelkamp 19.13 Portable Leaf Area Meter For Diseased Leaves Learn More OptiSciences GFPIII Fluorescence Probe Learn More Regent Instruments WinFOLIA Learn More Photon Systems Instruments Closed FC 800-C Learn More