AirGradient Open Air Quality Monitor (With SIM)

The AirGradient Open Air Monitor (Model O‑1PST) is a professional‑grade outdoor air quality sensor that measures eight key pollutants and environmental metrics. This version includes a pre‑installed SIM card, allowing it to operate without Wi‑Fi — ideal for remote locations, schools, commercial sites, and outdoor deployments where stable connectivity is essential.

How It Works:

• [PM1 / PM2.5 / PM10 Monitoring]: Plantower PMS5003T laser sensor provides accurate particulate readings.
• [CO₂ Monitoring Outdoors]: SenseAir S8 NDIR sensor detects emission sources invisible to PM sensors. 
• [TVOCs & NOx Monitoring]: Sensirion SGP41 tracks chemical pollutants from traffic, combustion, and industry.
• [Temperature & Humidity]: Built‑in sensors complete the environmental profile.
• [Weatherproof ASA Enclosure]: UV‑protected, durable, and engineered for accurate airflow and minimal condensation.
• [Open‑Source Firmware]: Modify, extend, or integrate the device however you like.
• [Flexible Data Streaming]: Send data to Home Assistant, AirGradient’s platform, or any custom server.
• [SIM Connectivity]: Pre‑installed SIM card provides cellular data — no Wi‑Fi required.
• [Secure Mounting]: Install on walls or poles using screws or stainless‑steel zip ties, with anti‑theft screw.

A Top Pick For:

• [Remote Sites]: Outdoor monitoring where Wi‑Fi is unavailable.
• [Schools]: Reliable CO₂ + PM data for playgrounds and roadside areas.
• [Commercial Facilities]: Track pollution around warehouses, car parks, and loading bays.
• [Smart Home Users]: Full integration with Home Assistant and custom servers.
• [Environmental Projects]: Share data with OpenAQ and community platforms.

Why We Like It:

• [Cellular Connectivity]: Works anywhere — no Wi‑Fi setup, no network issues.
• [Eight Key Metrics]: PM1, PM2.5, PM10, CO₂, TVOCs, NOx, temperature, humidity.
• [Open‑Source Freedom]: Modify firmware, add sensors, build custom dashboards.
• [Weatherproof & Durable]: ASA enclosure resists UV, rain, and temperature swings.
• [Flexible Data Use]: Stream data to any server or platform.

Care And Maintenance

• [Keep Vents Clear]: Ensures accurate airflow and sensor readings.
• [Check Mounting Screws]: Tighten periodically, especially after storms.
• [Firmware Updates]: Apply AirGradient’s open‑source updates for improvements.
• [Avoid Direct Water Jets]: Weatherproof, but not designed for pressure washing.
• [Pair With Indoor Monitor]: Compare indoor vs outdoor pollution sources.