Display Type : DIGITALWith Backlight Or Not : YESModel Number : PH-3012BCertification : NONEPH 3012B METER : ph testerRange: : pH 0.00 ~ 14.00Resolution: : pH 0.01Accuracy: : pH 0.1Temperature compensation: : 0C~ 50C (32~ 122F)Relative humidity (RH): : < 85%Calibration method: : Manual single point calibrationBattery : DC 9V(not include)High Precision PH-3012B pH Meter Water Quality Acidity Tester Monitor for Aquarium Pool Laboratory Drinking Water 40% offPls note New probe :Features:1.Quality Material: Made of quality ABS material, more durable.2.Backlight Display: Easy to read and does not affect the use in the dark.3.High Precision: Accurate to 0.1pH, more precise.4.Easy Operation: More Convenient.5.Replaceable Electrode: High cost performance.6.Wide Application: Suitable for the measuring of drinking water, hydroponics, aquarium, swimming pool, laboratory, etc.Specifications:Material: ABSPower Supply: DC 9V (Not Included)Measurement Range: 0.00-14.00pHResolution: 0.01pHAccuracy: 0.1pHTemperature Compensation: 0-50(32-122)Operating Environment:Temperature: 0-50(32-122)Relative Humidity: