Winsen ME3-SO2 Electrochemical SO2 Gas Sensor - 0-20ppm Range
The Winsen ME3-SO2 is an electrochemical gas sensor designed for precise detection and measurement of sulfur dioxide (SO2) concentrations from 0 to 20ppm. It provides a linear current output proportional to gas concentration, making it suitable for integration into industrial safety monitors, environmental protection systems, and air quality control panels.
Features
- Electrochemical sensing principle for accurate SO2 detection from 0-20ppm.
- High sensitivity of (0.55±0.15) µA/ppm with a resolution of 0.1ppm.
- Fast response time of less than 30 seconds (T90) to concentration changes.
- Excellent long-term stability with less than 2% signal drift per month.
- Low power consumption and linear output for easy system integration.
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The ME3-SO2 sensor operates on a proven electrochemical principle. Target gas molecules undergo an oxidation reaction at the working electrode within the sensor’s internal electrolytic cell. The current generated by this reaction is directly proportional to the gas concentration, following Faraday’s law, allowing precise concentration measurement through current sensing.
Engineered for reliability in demanding settings, the sensor features minimal zero drift across an operating temperature range of -20°C to 40°C and maintains performance under working pressures of 90-110 kPa. Its robust design ensures consistent readings with a repeatability of less than 2% of the output value, making it a dependable component for continuous monitoring applications.
Additional Information
| Weight | 0.01 kg |
|---|---|
| Dimensions | 7 × 4 × 2 cm |













