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 Regent Instruments WinCAM NDVI Learn More Meter Group PHYTOS 31 - Leaf Wetness Sensor Learn More Regent Instruments WinFOLIA Learn More Others Decagon LP-80 Ceptometer Learn More