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Multi-Gas Module
Multi-Gas Module
Front view of the Clarity Multi-Gas Modul air quality monitoring device in a compact white enclosure.
Angled view of the Clarity Multi-Gas Modul showing the compact sensor housing for environmental monitoring.
Clarity Multi-Gas Modul sensor module designed for multi-gas air quality monitoring.
Bottom view of the Clarity Multi-Gas Modul showing mounting and connection ports.
Clarity Multi-Gas Modul installed outdoors on a monitoring pole with a solar panel.
Clarity Multi-Gas Modul air quality monitor mounted on a pole for outdoor environmental monitoring.
Clarity Multi-Gas Modul deployed at an industrial site for real-time air pollution monitoring.
Clarity Multi-Gas Modul mounted on a steel pole with solar power for continuous gas monitoring.
Clarity Multi-Gas Modul outdoor air quality monitoring station installed with solar panel and sensors.
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Multi-Gas Module

Request a QuoteTechnical Specifications

The Clarity Multi-Gas Module expands the capabilities of the Node-S, enabling real-time measurement of CO, O₃, NO₂, NO, and NOx — five key pollutants that impact air quality and public health. Whether monitoring urban pollution, industrial emissions, or transportation corridors, this compact, all-in-one sensor provides high-quality data without the complexity of multiple instruments.

At data center fencelines, the same module tracks the CO, NO₂, NO, and NOx that diesel backup generators and on-site turbines release during testing and outages, giving operators continuous data center emissions monitoring that speaks the same language as NSPS and NESHAP permit conditions.

Designed for effortless deployment, the Multi-Gas Module features a weatherproof, UV-resistant enclosure and modular mounting for quick installation on both vertical and horizontal poles. With Clarity’s plug-and-play Add-On Module design, the Multi-Gas Module leverages the solar-powered operation and built-in cellular connectivity of the Node-S — even when paired with the Wind Module.

Field-tested air quality measurement equipment

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Accurate air quality measurements with Sensing-as-a-Service℠

Sensing-as-a-Service℠ is built for seamless air quality sensor network deployment, data management, and quality control at any project scale. Whether you're a regulator, private company, researcher, or community group, Sensing-as-a-Service ensures delivery of the high-quality air pollution measurements you need to drive real change.

Hardware

Easily deployed air monitoring devices

Solar-powered Clarity Node-S air quality sensor measures PM2.5 and NO2 and serves as a platform for additional modules that measure Black Carbon, Dust, Multi-Gas, Ozone, and Wind.

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Cloud

Cloud data management & visualization

Air quality measurements and air sensor network status are easily accessible in real-time via Clarity’s user-friendly Dashboard, REST API, and OpenMap.

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Support

Expert air quality project support

An experienced Environmental Project Manager to help you define a project plan and guide you through Collocation and Calibration of your devices.

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Multi-Gas Module - Outdoor Gas Sensor Specifications

Feature Clarity Dust Module Plantower-based sensors
Direct PM10 measurement Yes No, calculated from PM2.5
Humidity control Heated inlet None or passive
Accuracy Near-reference-grade; collocation results available Indicative only
Cloud QA/QC Automated or custom calibrations, handled by Clarity User-managed or none
Solar power Native integration with Clarity solar power options Requires external integration
Cellular connectivity Built-in via the Node-S Requires Wi-Fi or external modem

Multi-Gas Module Low-Cost Ambient Gas Sensor vs Reference Gas Monitors

Feature Clarity Dust Module Plantower-based sensors
Direct PM10 measurement Yes No, calculated from PM2.5
Humidity control Heated inlet None or passive
Accuracy Near-reference-grade; collocation results available Indicative only
Cloud QA/QC Automated or custom calibrations, handled by Clarity User-managed or none
Solar power Native integration with Clarity solar power options Requires external integration
Cellular connectivity Built-in via the Node-S Requires Wi-Fi or external modem

Multi-Gas Module Professional-Grade Gas Measurement vs. Consumer-Grade Gas Sensors

Feature Clarity Dust Module Plantower-based sensors
Direct PM10 measurement Yes No, calculated from PM2.5
Humidity control Heated inlet None or passive
Accuracy Near-reference-grade; collocation results available Indicative only
Cloud QA/QC Automated or custom calibrations, handled by Clarity User-managed or none
Solar power Native integration with Clarity solar power options Requires external integration
Cellular connectivity Built-in via the Node-S Requires Wi-Fi or external modem

Collocation Results: Accuracy and performance testing reports for
Multi-Gas Module

See all performance testing in our Collocation Results Library!
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Frequently Asked Questions

What gases can the Clarity Multi-Gas Module detect?

The Clarity Multi-Gas Module is designed to detect a configurable set of gases depending on your project needs. Common options include nitrogen dioxide (NO₂), carbon monoxide (CO), and ozone (O₃). This allows for targeted monitoring of pollutants from traffic, industry, and combustion sources.

Can I customize which gases the module monitors?

Yes — the Multi-Gas Module is modular by design. Customers can select specific gases to monitor based on local emission sources, regulatory requirements, or community health concerns. This flexibility makes it ideal for both research-driven deployments and operational air quality management programs.

How does the Multi-Gas Module complement other Clarity sensors?

The Multi-Gas Module enhances Clarity deployments by adding gaseous pollutant data to existing PM or black carbon measurements. When paired with the Node-S, it helps build a fuller picture of air quality by capturing both particle and gas-phase pollutants, enabling better source attribution and response planning.

What industries typically use Multi-Gas Module monitoring?

Industries such as transportation, mining, oil and gas, utilities, and manufacturing use multigas monitoring to track emissions and protect worker and community health. Data center operators in particular use it to measure emissions and combustion gases from backup generators; our guide to data center air quality standards explains which gases each regulation covers.  Urban planning agencies and environmental regulators also rely on Multi-Gas Module data for policy decisions.

Is the Multi-Gas Module suitable for high-risk industrial environments?

While the Multi-Gas Module is rugged and weatherproof, it is designed for ambient outdoor monitoring — not for hazardous confined spaces or explosive-risk industrial environments. For those settings, intrinsically safe equipment may be required. That said, the module performs well for perimeter monitoring or fenceline applications in industrial zones.

How often should the module be recalibrated?

We recommend periodic recalibration depending on pollutant type, deployment conditions, and data accuracy requirements. Clarity offers optional Calibration and Validation Services and automated QA/QC workflows to help maintain reliable performance over time. Note that collocation is currently required for the Multi-Gas Module.

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