AirGradient ONE Indoor Air Quality Monitor (With SIM)

The AirGradient ONE Indoor Monitor (with SIM) is a professional‑grade indoor air quality sensor that measures six key pollutants and comfort metrics. With a built‑in SIM card for cellular connectivity, a colour LED status bar, onboard display, and fully open‑source firmware, it delivers reliable, real‑time indoor air insights without needing Wi‑Fi.

How It Works:

• [PM₂.₅ Monitoring]: Laser‑based Plantower PMS5003T sensor provides accurate particulate readings.
• [CO₂ Monitoring]: SenseAir S8 NDIR sensor detects ventilation issues and indoor CO₂ buildup.
• [TVOCs & NOx]: Sensirion SGP41 tracks chemical pollutants from cooking, cleaning, off‑gassing, and combustion.
• [Temperature & Humidity]: Built‑in sensors track comfort and environmental stability.
• [LED Status Bar]: Colour‑coded air quality indicator visible across the room.
• [Onboard Display]: Shows real‑time readings without needing an app.
• [Open‑Source Firmware]: Modify, extend, or integrate the device however you like.
• [Home Assistant & Homey Support]: Native integration for smart home automation.
• [SIM Connectivity]: Operates independently of Wi‑Fi — ideal for offices, schools, rentals, and commercial deployments.

A Top Pick For:

• [Schools]: CO₂ + PM₂.₅ monitoring helps optimise ventilation and safety.
• [Offices]: Reliable data without relying on building Wi‑Fi.
• [Smart Homes]: Native Home Assistant/Homey support.
• [Clinics & Healthcare]: High‑grade sensors for reliable indoor air tracking.
• [Commercial Deployments]: RESET‑accredited and compliant with building standards.

Why We Like It:

• [Professional‑Grade Sensors]: Same sensor families used in commercial IAQ systems.
• [SIM Connectivity]: Works anywhere — no Wi‑Fi setup, no network issues.
• [Open‑Source Freedom]: No locked‑down ecosystem — modify anything.
• [Comprehensive Metrics]: Six key indoor air quality parameters in one device.
• [RESET Accreditation]: Suitable for professional building‑standard deployments.
• [Robust ASA Enclosure]: UV‑resistant, durable, and engineered for accurate airflow.

Care And Maintenance

• [Sensor Vents]: Keep clear for accurate airflow.
• [Enclosure]: Wipe with a soft cloth; ASA plastic resists UV and wear.
• [Mounting]: Wall‑mount using screws or stainless‑steel zip ties.
• [Firmware]: Update or customise via AirGradient’s open‑source tools.
• [Data Management]: Export or stream readings to your preferred server.