3 in 1 PH Controller TDS PPM Temperature Meter Monitor Replaceable BNC Type Probe Aquarium Hydroponics Water Quality Tester

-6%

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-11%

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0

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0

-0.4%

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-8%

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0

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-4%

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0

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1

-8%

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-9%

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-0.4%

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0

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1

2

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-5%

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-10%

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0

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1

1

5.0

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-11%

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-11%

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-5%

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-8%

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0

Incomplete data

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1

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3

-0.1%

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-4%

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-2%

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1

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4

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0

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1

1