Zhongshan city valleur Technology Co. Ltd.   

Large screen display, reading is convenient, fast and accurate, with a protective cover when the sample test pen container. The instrument can be performed at one point or two points for manual correction to ensure the accuracy of the measured data. The unique replaceable electrode, which can change the design of the electrode dialysis membrane. Measurement range: 0.00to14.0Ph accuracy: + 0.1pH