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, high-accuracy solution for continuous monitoring of liquid acidity and alkalinity. It combines a durable industrial-grade glass pH electrode with a precision signal conditioning circuit that converts the probe’s low-level millivolt output into a stable analog voltage suitable for microcontroller ADC inputs.

Designed for professional and long-term applications such as water quality monitoring, hydroponics, and aquaculture, the industrial probe features excellent anti-pollution performance and a low-impedance structure that resists clogging and drift. The module uses a standard BNC connector for reliable probe connection and a simple 3-pin interface for quick integration with Arduino, ESP32, STM32, or Raspberry Pi (via external ADC).

🔧 Key Features

• Industrial pH Probe: Composite glass electrode with low internal resistance (≤250 MΩ) for stable readings
• Wide Measurement Range: Full pH 0–14 acidity/alkalinity scale
• High Accuracy:±0.1 pH at 25 °C after proper two-point calibration
• Analog Output: Linear voltage output proportional to pH value
• Reliable Connectivity: Standard BNC connector for probe and 3-pin header (VCC, GND, Po)
• Fast Response: Stable readings typically achieved within ≤1 minute
• Broad Compatibility: Works with Arduino, ESP32, STM32 and Raspberry Pi (using an external ADC)

💡 Applications

• Aquaculture and fish tank water quality control
• Hydroponics and nutrient solution monitoring
• Industrial & municipal water treatment
• Laboratory testing and scientific research
• Environmental and educational water analysis projects

⚙️ Technical Specifications

📦 Package Includes

• 1 × pH Sensor Signal Conditioning Board
• 1 × Industrial pH Electrode Probe (BNC connector)
• 1 × 3-Pin Analog Connection Cable