yieryi 3-in-1 High Accuracy Portable pH/mV/Temp Meter + Replaceable pH & ORP Electrodes + Temperature Probe

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1

-2%

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1

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1

0

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2

1

-2%

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1

5.0

-2%

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1

1

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1

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-1%

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-0.4%

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-1%

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1

5.0

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3

5.0

-0.3%

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3

5.0

-0.6%

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5

5.0

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1

5.0

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2

4.5

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2

-0.2%

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-5%

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1

-0.9%

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Incomplete data

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3

-6%

Incomplete data

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-1%

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-2%

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1

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0

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-0.8%

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1

-2%

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1

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2

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8

5.0

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0

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2

-16%

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3

5.0

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-0.2%

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5

11

4.2

-3%

4 in 1 portable dissolved hydrogen h2 meter digital ph orp tester for driking water with 4 correction powder

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1

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-1%

Yieryi six-in-one water quality monitor orp/tds/ph/ec/cf/temperature automatic temperature compensation

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