Amazon.com Price: $21.49 (as of 28/03/2022 20:34 PST- Details) & FREE Shipping.
For freshwater and marine aquariums as well as ponds
Very accurate
Easy to read
Quick breathing at the water surface is an unmistakable sign for an oxygen deficiency. Unfortunately, it may then already be too late for acting appropriately. The sera O2-Test monitors the actual oxygen level in the water within minutes and allows for acting in time. sera O2 plus provides quick oxygen supply. Sufficient for approx. 60 measurements.
For freshwater and marine aquariums as well as ponds
Very accurate
Easy to read
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| ItemDimensions | 551, hundredths-inches, 157, hundredths-inches, 18, Hundredths Pounds, 354, hundredths-inches |
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