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 Qubit Systems Q-Box NF1LP Nitrogen Fixation Learn More Photon Systems Instruments OxyCorder 401 Learn More Hansatech Instruments FMS-300 Pulse Amplitude Modulated (PAM) Fluorometer Learn More Spectrum Technologies Handheld Refractometers Learn More