Features:3-in-1 water quality test: The meter has a three-in-one function, which can measure PH, Total Dissolved Solid and temperature with high precision at the same time. All-round measurement of water quality to ensure healthy water quality.0.05 pH Accuracy and 3-Point Calibration: With high sensitivity probe, the PH meter's full measurement range of 0.01-14.00pH, 0.01 pH resolution. And the pH meter uses a 3-point calibration method, put the electrode into standard solutions of pH 4.00, pH 6.86, and pH 9.18 to ensure the accuracy of your measurements.Backlit LCD Design: The water quality meter features a green Backlit LCD to help you see the measurement clearly in any situation.Automatic Temperature Compensation: No longer need to pay attention to the temperature of testing liquid, the meter can accurately determine the pH value of the sample in the temperature range of 0-60(32-140), so as to solve the inaccurate problem caused by changing the liquid temperature.Wide Application: Ideal for household and laboratory water testing applications, including drinking water, swimming pool, spa, pond, aquariums, hydroponics, etc.Specifications:Item name: Water Quality TesterMain material: ABSColor: Grey and whiteBattery: 3*LR44 button batteries (Included)Unit conversion: /Measuring Range: pH: 0.0114.00 pH; Total Dissolved Solid: 010000 ppm; Temp: ATC 060(32140)Resolution: PH: 0.01 pH; Total Dissolved Solid: 1 ppm; TEMP: 0.1/Accuracy: PH: 0.05 pH; Total Dissolved Solid: 2% FS; TEMP: 0.5Product size: 185*37*24mmProduct weight: 110gNote:*Please read carefully enclosed instructions before operating the tester.*There could be some deviations due to manual measurement or slight color difference owing to photographing condition. Thank you for your understanding.Package information:Package weight: 200gPackage size: 23.6*8.3*5cmPackage list:1*Water Quality Tester1*User Manual3*PH Buffer Tool