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Handheld Dissolved Oxygen Detector, Water Quality Tester with LCD Display, Measurement Range 0.0-30.0 mg/L, Automatic Shutdown, Ideal for Aquaculture and Fish Ponds
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Handheld Dissolved Oxygen Meter, Water Quality Tester with LCD Display and Automatic Shutdown, Measurement Range 0.0-30.0 mg/L for Aquaculture and Fish Ponds
