PH Sensor

A pH sensor measures the acidity or alkalinity of a solution by detecting the voltage difference generated when hydrogen ions interact with glass electrode. This voltage is proportional to the hydrogen ion concentration, and is converted to a pH value by a pH meter. 

1. The pH-Sensitive Glass Electrode:
  • The core of a pH sensor is a glass electrode, often with a thin, pH-sensitive glass membrane. 
  • This membrane is designed to allow hydrogen ions (H+) to selectively pass through, while other ions are largely blocked. 
2. Ion Exchange and Voltage Generation:
  • When the electrode is immersed in a solution, hydrogen ions from the solution interact with the outer surface of the glass membrane. 
  • At the same time, the inner side of the glass membrane, which is in contact with a known buffer solution (like pH 7), also interacts with hydrogen ions. 
  • This creates a potential difference (voltage) across the glass membrane, which is proportional to the difference in hydrogen ion concentration between the solution being tested and the buffer solution. 
3. Reference Electrode:
  • Most pH sensors also include a reference electrode (often silver/silver chloride or calomel). 
  • This electrode provides a stable and known voltage, which is necessary for accurate measurement of the voltage generated by the glass electrode. 

4. Measuring and Displaying pH: 

  • The pH meter detects the voltage difference between the glass electrode and the reference electrode. 
  • The meter then converts this voltage into a pH value based on a calibration with known pH standards. 
  • The pH value is displayed on the meter, indicating the acidity or alkalinity of the solution. 

Wide Range of pH Sensor for wide application.

High Accuracy.

Fast Sensing

Inbuilt Temperature Output for Temperature Compensation.

Measuring Range 0-14 pH
Sensor Length 130 mm , Customized also Available.
Sensor Cable length 5 meter, Customized also Available.
Sensor Body Glass, Epoxy, Ryton
Temperature Output Inbuilt Pt-100
Sensor Wire Terminal Wire Terminal, BNC
Sensor Connection PG13.5
Type of Sensor General Electrode AIPHSG
Highly Acid or Alkaline AIPHSTC
High Temperature AIPHSH
ETP/Dairy/Chemical/Pharma AIPHSR
Fermenter AIPHSF
Operating Temperature Model to Model change 80’C/100’C/140’C
Slope 59 +/- 3mV @ 25’C
No. of Junction Double

CE Approved

ISO 9001 : 2025

Water Quality Monitoring:

pH sensors play a vital role in ensuring the safety and quality of drinking water and wastewater treatment. They monitor the pH of raw water sources and treated water to ensure it’s within acceptable ranges. 

Industrial Processes:

pH sensors are used in various industrial settings to monitor and control chemical processes. This includes applications like controlling chemicals in industrial scrubbers, optimizing coagulation in water clarification, and maintaining the correct pH in chemical reactions. 

Laboratory Research:

pH sensors are essential tools in laboratories for accurately measuring the pH of solutions in experiments and research. They ensure the reliability of experiments by providing precise pH readings. 

Food and Beverage Industry:

pH sensors are used in the food and beverage industry to monitor and control pH levels in various products, ensuring quality and safety. 

Agriculture:

pH sensors help monitor soil pH, which is crucial for plant growth and nutrient availability. They help farmers adjust soil conditions to optimize crop yields. 

Aquaculture:
pH sensors are used in fish farming to maintain optimal water conditions for the health and well-being of aquatic life.