Feature: Large digital display makes it easy to read Pocket sized, handheld pH meter is lightweight, compact, conveniently fits in your pocket or bag and goes anywhere High accuracy ± 0.1 pH With automatic temperature compensation feature Easy to set up with the solutions provided Very uesful tool, necessary for home, aquarium, fishing industry, swimming pool, school laboratory, food and drinks, etc Specifications: Measuring range: 0.00-14.00PH Resolution: 0.01 pH Accuracy: ± 0.1 pH Operating Temperature: 0-60℃ Dimension: 155mm x 31mm x 18mm Power supply: 2*1.5V （LR44 Button cell) Re-Calibration Procedure: 1: Immerse the electrode in PH6.86 (under the temperature of 25°C ) standard buffer solution of phosphate, and gently shake the electrode. 2: Regulate the trimmer with a screwdriver until the buffer solution value corresponding to the measurement temperature is obtained. 3: Immerse the electrode in ph 4.01 or ph 9.18 the standard buffer solution of borax. After about one minute, until the buffer solution value corresponding to the measurement temperature is obtained. Note: Do not calibrate the instrument before using it for the first time. If the instrument is not used for more than 4 weeks, the calibration must be carried out again. The accuracy of PH is 0.01, the glass electrode is more sensitive to changes in the surrounding environment. So reading jump is normal in the air or water. You could please place the pH meter into the water, standing for 2 minus, the pH meter will slowly become stable. Package: PH Meter Carrying Cases PH Buffer Powders User Manuals
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