Measures dissolved oxygen in water or any other solution. Can be used to explore the effect of temperature change on respiration rates (e.g. locusts, yeast or maggots) as well as recording oxygen in fermentation, oxygen content in exhaled air and oxygen levels in ponds in relation to depths and photosynthesis.
Spare/replacement membranes are available, supplied as a pack of 3 membranes and KCI solution.
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