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New arrival portable PH meter LCD display PH 3012 Tester Aquarium Pool biology chemical lab water quality Acidity Monitor SpecificationsRange 0-14.00PHResolution 0.0PHAccurancy ±0.1pHTemperature Compensation: 0 degrees ~ 50 degreesPower Supply: DC 6V (not included )Dimensions 128mm*68mm*25mmweight 110g