Liquid pH Sensor Module For Arduino, ESP32, Raspberry Pi - Industrial Grade

Industrial Grade Liquid pH Sensor Module for Arduino, ESP32, Raspberry Pi

 

The Liquid pH Sensor Module is a complete solution for high-accuracy, long-term monitoring of liquid acidity and alkalinity. This kit consists of a durable, low-impedance glass pH electrode and a dedicated signal conditioning board that converts the electrode's weak millivolt signal into a stable analog voltage, ready for any microcontroller.

 

Designed for professional and demanding applications like water quality surveillance and hydroponics, the industrial electrode features an excellent anti-pollution performance and a structure that resists clogging, ensuring a service life of up to 1 year or more. The board is plug-and-play compatible, featuring a BNC connector for the probe and a simple header for connecting to your system's analog input port.

 

🔧 Key Features

 

   
• Probe Type: Industrial composite pH electrode with low internal resistance ($\leq 250 \text{M}\Omega$).
   
• Measuring Range: Full pH scale from $0 \text{ to } 14 \text{ pH}$.
   
• Accuracy: High precision with $\mathbf{\pm 0.1 \text{ pH}}$ (at $25^\circ\text{C}$ after two-point calibration).
   
• Output:Analog Voltage Output that is linearly proportional to the measured pH value.
   
• Connectivity: Standard BNC connector for the probe and 3-pin header for the control board ($\text{VCC}, \text{GND}, \text{Po}$).
   
• Response Time: Fast response, typically $\leq 1 \text{ minute}$ for stable reading.
   
• Compatibility: Designed to work seamlessly with the $\text{ADC}$ inputs of Arduino, ESP32, and Raspberry Pi (via external $\text{ADC}$).

💡 Applications

• Aquaculture and fish tank water quality maintenance.
   
• Automated Hydroponics and nutrient solution monitoring.
   
• Industrial and municipal water treatment and effluent monitoring.
   
• Precise measurement in laboratory and scientific research.
  

⚙️ Technical Specifications

                                                                   

Measurement Range	$0 \text{ to } 14 \text{ pH}$
Accuracy	$\pm 0.1 \text{ pH}$ (at $25^\circ\text{C}$)
Probe Connector	BNC (Standard Industrial Connector)
Output Type	Analog Voltage (Po)
Module Power Supply	$5.0 \text{V}$ DC (typical)
Operating Temperature	$0^\circ\text{C} \text{ to } 60^\circ\text{C}$ (Probe range: up to $80^\circ\text{C}$)
Response Time	$\leq 1 \text{ minute}$
Module Dimensions (L x W)	$\approx 4.3 \text{ cm} \times 3.2 \text{ cm}$

 

📦 Package Includes

• 1 × pH Sensor Circuit Board (Signal Conditioning Module)
   
• 1 × Industrial pH Electrode Probe (with BNC Connector)
   
• 1 × Analog Connecting Cable (3-Pin)