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Description: This PH Meter is the perfect device for determining the acidity or alkalinity of liquids.It's incredibly easy to use-just immerse the electrode and the readings are automatically displayed. Specification: Display: LCD Digital Measure Range: 0.00-14.00pH Resolution: 0.01pH Accuracy: ¡À0.05pH Power Supply: 2 * 1.5V LR44 Batteries(Keep using more than 500 hours) Operating Temperature: 0¡æ~80¡æ Calibration: automatic calibration Dimensions: 15.3 x 2.9 x 1.6 cm Weight: 52g Package included: 1 x Digital PH Meter 1 x User Manual