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 Complete G2 Series Grommet Kit Learn More Soil Moisture G4 Stem Sleeve Sealing Kit Learn More Soil Moisture Specimen Holder Learn More Qubit Systems Q-S151 CO2 Analyzer 0-2000ppm Learn More