AirGradient Open Air Monitor
£294.00 Price excl. VAT: £245.00
Only 4 left in stock
The Open Air (Model O-1PST) is an outdoor air quality monitor that checks whether the air quality is healthy.
Key Features:
- Measures PM1, PM2.5, PM10, CO2, TVOCs, NOX, temperature, and humidity
- Weatherproof enclosure
- Can be mounted on walls
- Fully open-source code for easy customisation
- 12-month warranty
- Certifications: CE, RoHS, REACH, FCC
Description
The open air is one of the first low-cost outdoor air quality monitors to include a CO2 sensor, enabling the detection of local emission sources that may not produce visible particulate matter.
Comprehensive monitoring with eight metrics
The open air monitor provides comprehensive air quality insights by measuring PM1, PM2.5, PM10, CO2, TVOCs, NOx, temperature, and humidity using the Plantower PMS5003T sensor, the SenseAir S8, the Sensirion SGP41 sensors, and more.

Flexible data usage and open source connectivity
The open air monitor offers unparalleled flexibility and allows you to connect your air quality data to any server, such as home assistant or the AirGradient data platform. You can benefit from real-time air quality insights, alerts, detailed reports, and the option to share outdoor data with OpenAQ.

Easy to mount on the walls
This open air monitor is weatherproof and can be securely mounted on walls or poles using screws or stainless-steel zip ties, with an additional secure screw to prevent theft.

Customisable durable enclosure design
Constructed with premium UV-protected ASA plastic, the open air monitor ensures durability and accurate air quality measurement, maintaining optimal airflow and minimising condensation risk.
As an open-source monitor, you can adjust easily by making changes and additions to the firmware and hardware.


Best paired with an indoor monitor
To fully understand your environment's air quality, we recommend monitoring both indoor and outdoor air. This approach provides valuable insights into pollution sources, ventilation effectiveness, and allows for comparative reports on air quality.
Learn more about our indoor air monitor.

Pricing and Purchasing Options
At Smart Air UK, we offer two purchasing options for the AirGradient Outdoor Air Quality Monitor to provide flexibility for both individual and business customers. The price of the monitor will vary depending on whether you choose to purchase directly from the AirGradient website or through us.
If you decide to buy directly from the AirGradient website, additional taxes and customs duties will apply upon arrival on the whole order amount (around $295 for one unit, including shipping). You can expect your order to get to you within three weeks. AirGradient will manage the sale, support, and warranty, and the Smart Air UK team will not be involved in the after-sales.
When you buy through Smart Air UK, the price will be approximately £215 excluding VAT (or £258 including VAT). We are able to offer a more comprehensive service, ideal for businesses and those preferring a UK-based supplier. The price covers additional costs such as delivery to the UK, local shipping to your address within 2 to 3 working days, insurance, and a UK-based warranty. When purchasing through us, you benefit from UK support and a consistent price that accounts for currency fluctuations. This ensures there are no surprises with customs or additional fees after your purchase.
Technical Specs
| Weight | 0.2 kg |
|---|---|
| Dimensions | 9 × 8 × 8 cm |
| Brand | Smart Air |
| Your Purchase Includes | Includes 1 × Monitor, adhesive hook, charging cable, user manual |
| Colour | White and Blue |
| Dimensions L × W × H | 90 x 80 x 80 (mm) |
| Weight | 195 (g) |
| Ranges | PM1: 0 ~ 500 μg/m³ |
| Power Supply | >2A / USB-C cable |
| Bluetooth | Bluetooth 5.0 / Bluetooth Mesh |
| Metrics x8 | PM1, PM2.5, PM10, CO2, TVOCs, NOX, Temperature, Humidity. |
| Network | Wi-Fi 2.4GHz |
| Warranty | 1 year |
| Certification | CE, RoHS, REACH, FCC |
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