Clarity provides a complete, end-to-end air quality monitoring system trusted by governments, businesses, and communities in 85+ countries. Sensing-as-a-Service℠ combines resilient solar-powered air monitoring equipment, a full stack of cloud-based software, and expert air quality support into one seamless solution for air quality measurement.
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Global cities including Accra, Chicago, London, Los Angeles, Manila, Philadelphia, Perth, Washington D.C., and Yerevan trust Clarity for real-time, reliable air quality data. Clarity’s air monitoring systems are trusted in 85+ countries to accurately measure outdoor air pollution.
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Clarity’s Sensing-as-a-Service℠ delivers air quality monitoring hardware, software, and support in one affordable package with minimal maintenance and no hidden costs. A modern, hassle-free way to monitor air quality, so you can focus on using the data, not managing your air quality measurement equipment.
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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Air quality measurements and air sensor network status are easily accessible in real-time via Clarity’s user-friendly Dashboard, REST API, and OpenMap.
Learn more about Clarity Cloud
An experienced Environmental Project Manager to help you define a project plan and guide you through Collocation and Calibration of your devices.
The Node-S is Clarity’s flagship outdoor monitor, delivering real-time, calibrated PM₂.₅ and NO₂ data. Solar-powered and cellular-connected, it operates continuously without external power or Wi-Fi. Built for reliable, scalable deployment in both cities and remote environments, the Node-S provides accurate air quality data anywhere.
Runs autonomously with its integrated solar panel and battery - no grid power or cabling required.
A global SIM ensures reliable data transmission, even in low-infrastructure areas.
Compact, weatherproof, and lightweight for quick mounting on poles or walls.
Rigorously field-tested and the only solar-powered air sensor with UK MCERTS certification for proven accuracy.
The Node-S is the foundation of Clarity’s modular air quality measurement system. This flexible, cost-effective approach means you invest only in the air pollution measurement devices you need, easily incorporating new Add-On Modules to scale as your needs evolve. Explore our Add-on Modules to build the right air quality monitoring system for your goals.
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Near-reference PM₁₀ dust monitoring module designed for accurate, solar-capable outdoor and remote deployments.
Plug-and-play wind module measuring speed and direction for improved air quality modeling and source attribution.
Real-time black carbon monitoring module using microAeth® technology, designed for seamless integration into Clarity networks.
The Multi-Gas Module provides real-time measurement of CO, O₃, NO₂, NO, and NOx — five key pollutants that impact air quality and public health.
As your Clarity devices sample the air, measurements are continuously uploaded to the Clarity Cloud via cellular networks. Our cloud architecture securely handles all aspects of your air quality data transmission, validation, storage, and processing.
See examples of how major cities around the world use the natively solar-powered Clarity Node-S air quality sensor and Clarity Add-On Modules for air pollution measurement across large geographic areas. For more examples, see our Customer Stories page.
Use the interactive map below to explore a few of our largest, flagship air quality monitoring networks. To see all featured project visit our Customer Stories page.
Air quality needs vary, so Clarity’s platform is designed to serve cities, companies, and community organizations alike. Whether you’re a mayor, a sustainability lead, or a community advocate, Clarity delivers the real-time data you need.
Agencies use Clarity to expand coverage beyond sparse regulatory stations, creating dense networks that inform policy and provide transparent public reporting.
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Industrial sites, construction projects, and private companies rely on Clarity to monitor emissions, identify issues, and support mitigation efforts.
Non-profits and NGOs deploy Clarity sensors to empower residents with local air quality insights, and support community-led environmental action.
Hear directly from partners who have built effective air quality monitoring programs with Clarity. Their testimonials highlight the impact of reliable, scalable air quality data.
"The Node-S is solar powered, has impressive battery life, and transmits data via cellular network. That means we could put these monitors anywhere that the sun shines and you can make a cell call. After the Marshall fire we installed a total of 22 monitors in the burn area. "
The information we get from the Clarity Node-S sensors and the air health monitoring has helped us shape a lot of what we're doing under our sustainability pillar. Having access to this data helps us in one of our key objectives for the city, which is to attract residents to the city in the future.”
"The Clarity Node-S is light, it has a small solar panel, and it's reliable. We can put them anywhere. All of those things combined mean it is super easy for communities to put them up by themselves."
“There's less maintenance with Clarity’s compact Node-S device — remote monitoring of device health means less cost to actually go to that particular site for maintenance. That time and cost-saving measure is critical for our business.”
"Today we have 50 Clarity Node-S sensors in Almaty that provide us with online data on the type of particles and pollution in different parts of the city. Thanks to these sensors, we can plan environmental measures in Almaty.”
"We needed high-density data to develop a model that was representative of a real situation on a very local scale – so multiple devices and multiple locations. The Clarity Node-S was ideal for this use case."
Explore the resources behind Clarity’s Sensing-as-a-Service℠ solution, from technical specifications and white papers to videos, collocation data, and academic research. Together they cover every stage of an air quality monitoring programme, from planning and funding to deployment and reporting.
A practical guide to planning and deploying low-cost air sensor networks at scale.
Meeting US EPA performance targets for accurate particulate matter measurement.
A blueprint for building a city-scale air quality monitoring programme.
Real-world deployments from cities, agencies, and communities worldwide.
Independent collocation results showing sensor accuracy against reference monitors.
Grants and funding paths to support air quality monitoring projects.
Expert sessions on deployment, calibration, and monitoring programme design.
A deep-dive series on how each key air pollutant is measured.
Product documentation, setup guides, and technical support.
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From product news and funding updates to pollutant deep-dives and solution guides, the Clarity blog covers the full picture of air quality monitoring. Below are some of our most recent posts.
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