digital meter with black probe and blue buttons white background |
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| navigate by keyword : meter digital electronic device scientific instrument laboratory equipment measurement tool probe sensor display screen buttons blue black gray white background isolated technology science testing analysis calibration liquid solution chemistry industry agriculture water quality food safety research development data reading handheld portable object studio shot clean simple modern technical precision accuracy electrical conductivity tds |
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| A gray digital pH meter with a black probe and blue buttons sits on a white background |
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