E-201-C Liquid pH Sensor

The E-201-C Liquid pH Sensor is a durable, industrial-grade electrode probe built for precise and reliable pH measurement in both freshwater and chemical solutions. With its high sensitivity glass electrode and BNC connector, it provides accurate analog voltage output corresponding to the pH level of a solution.

This pH probe is compatible with Arduino, Raspberry Pi, and microcontroller-based data acquisition systems, making it ideal for DIY water testing, environmental monitoring, aquaponics, and industrial fluid analysis.

Key Features

✅ High Sensitivity: Fast response time and stable analog output.
✅ Wide Measuring Range: Measures pH levels from 0 to 14.
✅ Analog BNC Connector: Easily connects to most pH interface boards.
✅ Durable Build: Glass electrode with protective plastic sleeve for extended lifespan.
✅ Compatible with Arduino and Raspberry Pi: Perfect for DIY and IoT water monitoring projects.
✅ Temperature Resistant: Operates effectively in temperatures from 0°C to 60°C.
✅ Easy Calibration: Can be calibrated using standard pH buffer solutions (pH 4.0, 7.0, and 10.0).

Technical Specifications

• Model: E-201-C

• Measurement Range: 0 – 14 pH

• Output Voltage: 0 – 5V (with pH interface board)

• Temperature Range: 0°C – 60°C

• Response Time: ≤ 60 seconds

• Internal Resistance: ≤ 250MΩ

• Connector Type: BNC

• Cable Length: Approx. 100 cm

• Electrode Type: Glass combination electrode

• Working Life: > 6 months (depends on usage)

How It Works

The E-201-C pH sensor works by detecting hydrogen ion activity in a solution using its glass electrode membrane. The resulting potential difference is converted to a voltage output that corresponds to the pH value. When connected to an Arduino or pH sensor interface board, this data can be processed and displayed in real-time, enabling applications in smart farming, aquaponics, and automated pH monitoring systems.

Applications

💧 Water Quality Testing: Ideal for measuring water pH in aquariums and pools.
🌱 Hydroponics & Aquaponics: Monitor nutrient solutions for optimal plant growth.
🧪 Laboratory Experiments: Accurate pH readings for chemistry and biology applications.
🏭 Industrial Processes: pH monitoring in wastewater treatment and chemical industries.
⚙️ IoT & Arduino Projects: Integrate with Arduino boards and Raspberry Pi for automated monitoring.

Precautions

⚠️ Do not immerse the BNC connector in liquid.
⚠️ Always rinse the electrode with distilled water after use.
⚠️ Store the probe in a pH 4.0 or storage solution when not in use.
⚠️ Calibrate periodically for accurate results.
⚠️ Avoid long-term exposure to strong acids or alkalis.

Internal Links

• Electronics Components

• Sensors and Modules

• Arduino and Accessories

• Tools and Accessories

YouTube Tutorial

🎥 Watch: How to Use E-201-C pH Sensor with Arduino for Water Quality Testing

Summary

The E-201-C Liquid pH Sensor and Electrode Probe delivers accurate, fast, and reliable pH measurement for a variety of applications, including water testing, hydroponics, laboratories, and environmental monitoring. Its BNC connector, glass electrode, and Arduino compatibility make it an excellent choice for DIY electronics, industrial setups, and academic research. Designed for performance and durability, the E-201-C ensures consistent results in every use.