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 Soil Moisture G4 Stem Grommet Kit Learn More Qubit Systems Q-S151 CO2 Analyzer 0-2000ppm Learn More Qubit Systems Q-Box NF1LP Nitrogen Fixation Learn More Soil Moisture G4 Brass Support Washers Learn More