Winsen ME2-O2-Ф20 Oxygen Gas Sensor Module - 0-25%Vol Electrochemical
The Winsen ME2-O2-Ф20 is an electrochemical oxygen sensor module designed for precise measurement of O2 concentration from 0 to 25% by volume. It provides a linear current output proportional to gas concentration, making it compatible with microcontroller ADCs and industrial signal conditioning circuits for air quality monitoring, safety systems, and environmental analysis.
Features
- Electrochemical sensing principle for high-precision O2 concentration measurement (0-25%Vol).
- Low power consumption with a linear current output sensitivity of 0.1-0.3 mA in air.
- Fast response time (T90 ≤15 seconds) and excellent long-term stability (<2% drift per month).
- Wide operating temperature range with minimal zero drift (≤0.1%Vol from -20°C to 40°C).
- Compact Φ20 package ideal for integration into portable analyzers, industrial safety monitors, and ventilation control systems.
Out of stock
The Winsen ME2-O2-Ф20 electrochemical oxygen sensor operates on a fuel cell principle, where oxygen undergoes an electrochemical oxidation reaction at the working electrode. The resulting current is directly proportional to the O2 concentration, adhering to Faraday’s law, enabling accurate gas concentration measurement through current sensing.
This module features a robust design with a recommended 100Ω load resistor, ensuring stable signal output across a normal atmospheric pressure range (±10%). Its high repeatability (<2% output value) and strong anti-interference characteristics make it suitable for demanding industrial and environmental monitoring applications where reliable data is critical.
Additional Information
| Weight | 0.021 kg |
|---|---|
| Dimensions | 6 × 3 × 3 cm |










