Air Quality Monitoring

An air quality monitoring network built on a new generation of "Internet of Things" sensors.

What We Are

An open platform to measure and share urban air pollution data over the web

With the AirWatch sensor and platform, everyone can easily collect and share real-time air quality data. Help us monitor the air we breath. Start using AirWatch today.


Air pollution is the world’s fourth-leading fatal health risk *. Poor air quality in cities exposes citizens to air pollution that may lead to asthma attacks, heart disease, lung cancer or chronic bronchitis. Air quality represents a major challenge for governments and regulators alike.

* American Association for the Advancement of Science

Existing technology

Governments have the best intentions to address air pollution, but face challenges. The major problem with current sensor technology is that it’s very expensive. Because of the cost, the number of monitors is very limited, especially at street level.


Our aim is to help deploy low cost networks of air-quality sensors that can deliver information on a street level. We hope to enhance existing government monitoring technologies. Governments and citizens can use this abundant data to inform their decisions about air-pollution management and improve their policies.

Air Pollution

Particle pollution is a mixture of solid particles and liquid droplets. We monitor the air for two categories of particle size: PM2.5 and PM10. These particles are very small and are measured in micrometres (µm). Particle readings are effected by humidty so we also measure humidity and temperature. We also detect unhealthful gases such as Ammonia, Carbon Monoxide and Nitrogen Dioxide.

AirWatch Measures

Air Particles: Particle Matter 1.0, 2.5, 10.0
Gases: CO, NH3, NO2
Environment: Temperature, Humidity, Atmospehric Pressure

What We Do

We help reduce citizens’ exposure to harmful pollutants through our networks of small, low-cost sensors.

AirWatch sensors are able to maintain high accuracy over time. Our deep learning cloud technology allows us to identify inaccurate readings, allows devices to self calibrate!

AirWatch Sensors

Using a new generation of laser particle counters to provide real time measurement of (amongst other data), PM1.0, PM2.5 and PM10. The sensors also measure humidity, temperature and atmospheric pressure. AirWatch sensors are easy to install, requiring a power outlet and either WIFI or LoRa network coverage. 2 versions of the sensors are available depending on preferred communications (WIFI / LoRa).

AirWatch Cloud

The AirWatch sensors send their data to the AirWatch cloud paltform. Users login to AirWatch to monitor their sensors, configure sharing of data, view analytics, setup alerts and lots more. We provide an API so the data can easily be integrated into your other tools and systems.

Open Source Hardware

For those wanting to build their own sensors, we provide full circuit scehmatics and open source code. We want to build a community around the AirWatch sensors, and add support for more hardware and communications protocols.

Hardware Specs Github

Join our project

We are currently trialing our technology and creating a network in Melbourne, Australia.

We will first test the concept of a low cost air mointoring service in this city, before rolling out. We are looking for volunteers to help us during the trial period. We will supply free sensors. Contact us if you can help.

AirWatch devices installed
Measurments taken
PM 2.5 alerts
PM 10.0 alerts

Contact Us

Get in touch if you are interested in joining the AirWatch project.

Where To Find Us



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