Be aware of your air
From wildfire smoke to workplace safety, our monitors provide real-time insights and alerts to help you protect your health and environment.
Professional-grade, Modular Air Quality Monitoring
AirU Pro
A customizable air quality monitor for anyone ranging from your home to large-scale and industrial use.
Get real-time data and precise measurements for any environment.
Entry-level PM2.5 Particulate Monitoring
AirU+
The AirU+ is a compact, single-pollutant monitor designed to track PM2.5, the most common air pollutant that impacts health. Ideal for personal use or small-scale applications, it provides reliable, real-time data for cleaner air.
What can I track?
With a fully equipped AirU Pro, you can monitor all these pollutants.
Wind speed/direction, temperature, pressure, humidity, and noise are also available!
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Scientific Name
|
Common Name
|
Common Sources
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|---|---|---|
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PM1 (µg/m3)
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Ultrafine Particles
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Microorganisms, mineral dust, secondary aerosols, industrial emissions
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|
PM2.5 (µg/m3)
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Fine Particles
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Vehicle emissions, combustion byproducts, wildfire smoke, industrial emissions
|
|
PM10 (µg/m3)
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Coarse Particles
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Pollen, road dust, construction dust, silica dust, desert dust.
|
|
NO2 (ppb)
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Nitrogen Dioxide
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Vehicle emissions, power plants, industrial processes
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|
O3 (ppb)
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Ozone
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Vehicle emissions, industrial emissions, photochemical reactions
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|
CO ( ppb)
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Carbon Monoxide
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Vehicle emissions, wildfires, residential heating, industrial processes
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|
H2S (ppb)
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Hydrogen Sulfide
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Natural gas extraction, wastewater treatment, volcanic activity
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|
SO2 (ppb)
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Sulfur Dioxide
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Coal combustion, metal smelting, industrial processes
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|
CO2 (ppm)
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Carbon Dioxide
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Fossil fuel combustion, deforestation, industrial activities, respiration
|
|
CH2O (ppb)
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Formaldehyde
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Building materials, tobacco smoke, combustion processes
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|
VOC (ppb)
|
Volatile Organic Compounds
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Paints, solvents, vehicle emissions, industrial activities
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Connectivity Options
SD Card
Local storage for collected data.
What it does: Stores air quality data directly on the device.
Use case: Useful for backup or when offline. Data can be retrieved later.
*Included with every AirU Pro
Wi-Fi
Wireless internet connection using local networks.
What it does: Sends air quality data through an existing wireless network.
Use case: Easy setup in homes, offices, or schools with Wi-Fi access.
4G LTE
Cellular data connection for transmitting information wirelessly.
What it does: Sends air quality data to the cloud using cell towers.
Use case: Great for movable units or remote areas without Wi-Fi.
GNSS/GPS
Global Navigation Satellite System / Global Positioning System.
What it does: Pinpoints the monitor’s location using satellites.
Use case: Essential for mapping data or tracking mobile monitors.
LoRa
Low-power, long-range communication.
What it does: Sends small data packets over long distances using minimal power.
Use case: For remote sites, industrial projects, research studies, smart cities, and temporary monitoring with no Wi-Fi or cellular needed.
PoE
Power over Ethernet.
What it does: Supplies both electricity and internet through an Ethernet cable.
Use cases: Fast, secure setup with no Wi-Fi needed. Perfect for fixed locations and reliable data transmission.
About the data
We collect, clean, and fuse data from communities, sensors, and research projects, then model and visualize it to deliver trustworthy air quality insights.
Collect Data
From communities, businesses, municipalities, EPA, research projects, and open-source monitors (AirU, PurpleAir, etc.).
Process in the TELLUS Cloud
Secure, centralized platform for all incoming data.
Clean & Model (CoreDI)
Outlier screening, drift correction, machine learning, and real-time adjustments.
Visualize
Dashboards, maps, and APIs built on fused data and spatial statistics.
Share & Act
Clear insights for communities, researchers, and decision-makers.
Air Quality Maps & Data
Trusted by experts. Backed by science.
AirView is a user-friendly platform to visualize and analyze air quality data with historical and real-time data, heat maps, overlays, notifications, APIs, and more.
Indoor or Outdoor, Get the Full Picture
Our monitors are flexible for both indoor and outdoor use. From classrooms and offices to industrial sites and homes, real-time monitoring helps you understand the air where it matters most.
Adaptable to Every Project
No two sites are the same. That’s why our monitors are designed to work in urban, rural, industrial, or natural environments. Whether you need a short-term deployment or a permanent network, TELLUS makes it possible.
20+ Years of Research
Backed by 20+ years of research and data from 20,000 ground-level sensors, our real-time calibration ensures precise results.
High Accuracy
Machine learning algorithms for professional-grade accuracy.
Actionable Data
API, tools, and dashboards for communities, researchers, & businesses.
AirU Pro vs AirU+
AirU Pro
AirU+
Temperature
Relative humidity
Barometric pressure
Temperature
Relative humidity
VOCs
NOx & O3
CO & H2S
SO2
CO2
CH2O
Noise
Wind
Wi-Fi
4G LTE
GNSS/GPS
LoRa
PoE
Wi-Fi
GPS
Real-time data
Customizable
SUMMA compatible
Real-time data
Pricing That Fits Your Project
Project scopes vary, and so do budgets. Equipment needs, deployment size, and reporting requirements all play a role in pricing. That’s why we work with you directly to create a cost-effective solution. Contact us to talk through your project and get tailored pricing.