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.

Multi-Gas Module use cases

CO and wildfires

• CO is a by-product of combustion, emitted by both wildfires and urban sources
• Wildfires produce significantly more PM2.5 per unit of CO than urban sources
• The PM2.5-to-CO ratio helps distinguish wildfire smoke from urban pollution.

NOₓ and traffic

• High NO and NO₂ levels identify traffic-related pollution hotspots
• A higher NO-to-NO₂ ratio indicates fresh emissions near the source, while a lower ratio suggests chemical transformation as the air moves further away.

O₃ non-attainment and smog formation

• Quantify diurnal pattern of NOx (morning, evening peaks) and O3 (afternoon peak)
• Elevated NOₓ and O₃ together signal strong photochemical activity and smog formation.

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Case Studies

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The Ozone Module integrates seamlessly into Clarity networks with an ozone monitoring technology has been approved by the U.S. Environmental Protection Agency as a modification of Federal Equivalent Method (FEM): EQOA-0914-218. The Ozone Module is well suited for use by states and other monitoring agencies under 40 CFR Part 58, Ambient Air Quality Surveillance, for monitoring for compliance with the Clean Air Act.

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This lightweight and durable sensor is made of molded thermoplastic for high performance in even extreme climates with harsh UV and weather conditions.

Powered by the native solar panel of its companion Node-S device, the Clarity Wind Module is a truly plug-and-play solution for better source attribution and improved air quality modeling.

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Use the Black Carbon Module to indicate this extremely harmful component of particulate matter, with impacts ranging from human health to reduced agricultural productivity, and even global warming.

The Black Carbon Module is a real-time 5-wavelength UV-IR Black Carbon monitor.

Designed to be installed outdoors on street poles and along fence lines, it also features an accelerometer, altimeter/barometer, and sensors for relative humidity and temperature. The spectrum measurement provides insight into the composition of light absorbing carbonaceous particles and helps to distinguish among the different optical signatures of various combustion sources such as diesel, woodsmoke, biomass and tobacco.

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A truly self-sufficient IoT air quality monitoring system with solar harvesting, internal battery, and global cellular communications, the Clarity Node-S accommodates site-specific requirements according to the customer’s needs, not the other way around.

MCERT-Certified for Accuracy
Complies with MCERTS Performance Standards for Indicative Ambient Particulate Monitors (CSA MC230425/00) for both PM2.5 and PM10.

Solar-powered and Cellular-connected
Pre-configured with integrated solar power harvesting, batteries, and global cellular connectivity to get up and running quickly without external infrastructure.

Robust and weatherproof
Rugged, weatherproof devices for seamless operation and minimal maintenance even in remote locations, with free servicing and replacement of equipment under warranty.

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