Aeroqual Sulfur Dioxide (SO₂) Module
PID gas analyzer module with integrated zero cycle and nafion membrane
Dual range – 0 – 30 ppm, 0 – 500 ppb
$4,050.00
Availability: 8 in stock
Product Information
Sulfur Dioxide (SO₂) is one of six criteria air pollutants identified by the U.S. EPA and is monitored extensively around the world by regulatory agencies.
SO₂ is emitted directly from industrial processes and combustion sources. It is also directly emitted by vehicles, especially if fuel quality is poor.
The Aeroqual SO₂ module measures ambient concentrations, helping teams assess changes around industrial facilities and other potential sources.
Product Features
| Specification | Details |
| Measurement technology | Electrochemical sensor with automatic baseline correction |
| Measurement range | 0-10,000 ppb – equivalent to 0-10 ppm |
| Display resolution | 0.1 ppb |
| Lower detection limit | 2 ppb |
| Calibration | Field calibration using reference gases |
| Noise: Zero (ppb); Span (% of reading) | 1; 0.02% |
| Linearity (% of FS) | 0.6% |
| 24 hr Drift: Zero (ppb); Span (% of FS) | 1; 0.3% |
| Monitor platforms | AQS 1 and AQM 65 |
Sample/zero cycling helps reduce baseline drift during ambient monitoring.
Performance & Field Data
Aeroqual reports R² = 0.99 in a controlled six-point gas test spanning 0-1,000 ppb. This demonstrates response linearity over the tested concentrations; it is laboratory validation rather than an outdoor co-location result.
Results shown are from the specific manufacturer-reported evaluation described. Performance depends on the monitoring configuration, calibration, site conditions and measurement objectives.
Typical Applications
- Industrial perimeter monitoring
- Ambient assessments around combustion sources
- Urban air quality investigations
Select the right module for your project
Tell Specto what you need to measure, the concentrations you expect and the monitor you plan to use. Our engineers and scientists can help you select the module, configuration and calibration approach for your project.
