Aeroqual Benzene (C₆H₆) Module
Benzene (0-100 ppb C6H6) gas module with integrated PID sensor for speciated benzene measurement
Continuous sub ppb measurement of benenze in ambient air.
$8,925.00
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Product Information
Benzene is a hazardous air pollutant associated with fuel handling, vehicle exhaust, oil and gas operations, and industrial processes. Aeroqual’s AQS 1 Benzene Modules provide continuous, selective benzene measurements for ambient and perimeter air quality monitoring. Available in low- and high-range configurations, the modules help teams measure benzene concentrations across different environmental and industrial applications.
Product Features
The Aeroqual Benzene Modules use temperature-programmed desorption (TPD) with photoionization detection (PID) to measure benzene selectively, reducing interference from other hydrocarbons. Both configurations provide a new measurement every 15 minutes and integrate with the Aeroqual AQS 1 outdoor air quality monitoring system.
Technical Specifications
| Specification | Low Range | High Range |
| Measurement range | 0–100 ppb | 0–10 ppm |
| Measurement technology | TPD with PID | TPD with PID |
| Display resolution | 0.01 ppb | 0.001 ppm |
| Noise at zero | 0.05 ppb | 0.005 ppm |
| Lower detection limit (3σ) | <0.2 ppb | <0.02 ppm |
| Precision (% of full scale) | 1% | 1% |
| Linearity (% of full scale) | 2.9% | 2.9% |
| 24-hour zero drift | 0.04 ppb | 0.004 ppm |
| 24-hour span drift (% of full scale) | 0.5% | 0.5% |
| Measurement interval | 15 minutes | 15 minutes |
| Compatible monitor | Aeroqual AQS 1 Benzene | Aeroqual AQS 1 Benzene |
Integrated with Aeroqual monitoring software, the AQS 1 Benzene system supports remote data access, configurable alerts, reporting and visualization alongside meteorological data. Its low-power design also supports battery- and solar-powered perimeter monitoring configurations.
Performance & Field Data
In Aeroqual’s reported two-month field comparison, two low-range benzene modules installed in an AQS 1 were co-located with an automatic gas chromatograph near a refinery in Southern California.
The modules achieved R² values of 0.93 and 0.89, with mean absolute errors (MAE) of 0.10 and 0.13 ppb, respectively. These results demonstrate the low-range module’s performance under the conditions of that field evaluation.
The high-range module extends measurement capability to 10 ppm for applications where higher benzene concentrations are expected.
The field comparison results above apply specifically to the low-range module.
Results shown are from the specific manufacturer-reported evaluation described. Performance depends on monitoring configuration, calibration, site conditions and measurement objectives.
Typical Applications
Low Range (0–100 ppb)
- Oil and gas facility fenceline monitoring
- Ambient and community air quality monitoring
- Fuel-related remediation and industrial perimeter monitoring
High Range (0–10 ppm)
- Industrial sites with potentially elevated benzene concentrations
- Petrochemical and chemical processing facilities
- Near-source benzene monitoring during remediation and industrial activities
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.
