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8 Points Calibration Planting Soil Portable pH/ORP Meter — CialanpH range:-2.000~20.000pH
pH resolution:0.1pH,0.01pH,0.001pH
Accuracy:0.002pH
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5 Points Calibration Laboratory Portable pH Meter For Water — CialanpH range:-2.00~18.00pH
pH resolution:0.1pH,0.01pH
Accuracy:0.01pH
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3 Points Calibration Food Portable pH Meter — CialanpH range:-2.00~18.00pH
pH resolution:0.01pH
Accuracy:0.01pH
