JBL O2 Oxygen Test Set

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The JBL Oxygen Test Set O2 is designed for the measurement and routine control of the oxygen content in saltwater and freshwater aquariums and in mains water and garden ponds within the range of 1 10 mgl ppm. Recommended oxygen content 8 mg at 25C Test providing accurate readings of oxygen levels from 1 10 mgL in freshwater and marine tanks as well as garden ponds. Important when algae preparations are used as large amounts of oxygen are used when algae are eliminated. Recommended for use at night in densely planted aquariums when large amounts of O2 are absorbed.