High precise pH value measurement meter is depicted.This pH value measurement meter is designed based on MSP430 MCU and pH electrode sensor,while the method of two point calibration and software temperature compensation is applied in the designed meter.This pH value measurement has the features of two point calibration,auto temperature compensation,historical data storage and real-time data transmission.The problem of low power,high precise and data transmission of the pH value measurement meter are solved.This meter has been applied in industry.
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