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Finally, we will learn the calibration method which will determine the correctness and accuracy of the sensor.

We will also learn about the construction & working of the Ph Sensor.

We will design a simple Ph Meter and display the Ph value on OLED/LCD Display. In this basic tutorial, we will learn how to interface Gravity Ph Sensor with Arduino. Similarly, Ph Sensor has a wide range of applications like wastewater treatment, pharmaceuticals, chemicals & petrochemicals. By knowing the Ph, we can monitor the water quality in Agricultural Farm and also in Fish Farming. Thus Ph sensor has the ability to determine the Ph of any solution, i.e it tells whether the substance is acidic, basic or neutral in nature. Acidic solutions have a lower pH, while basic solutions have a higher pH. In chemistry, pH is a scale used to specify how acidic or basic a water-based solution is. Interfacing Ph Sensor with Arduino & OLED Display.Aqueous Solution for Testing the Ph of different Solutions.