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Smartair

AirGradient ONE Indoor Air Quality Monitor

AirGradient ONE Indoor Air Quality Monitor

£300.00 GBP
£300.00 GBP
Sale Sold out
Shipping calculated at checkout.

The AirGradient ONE Indoor Air Quality Monitor (Model I-9PSL) is a high-precision, open-source air monitor designed to measure real-time environmental metrics inside homes, offices, and classrooms. Built with industry-leading sensors, a vibrant OLED display, and a customisable RGB LED status bar, this compact unit tracks crucial indoor air pollutants — including PM2.5, CO2, TVOCs, and NOx — to help you identify poor ventilation and off-gassing chemicals. RESET Air accredited, it integrates seamlessly into local smart home systems like Home Assistant without cloud lock-in.

Key Features

  • Multi-Pollutant Sensor Suite: Measures PM1, PM2.5, and PM10 particulate matter, CO2 (carbon dioxide), TVOCs (Total Volatile Organic Compounds), NOx (nitrogen oxides), temperature, and relative humidity.
  • Industry-Leading Precision: Powered by a SenseAir S8/S88 NDIR CO2 module, a Plantower PMS5003 laser particle counter, and Sensirion SGP41 TVOC/NOx gas sensors for research-grade accuracy.
  • At-a-Glance Visual Feedback: Integrated 1.3-inch OLED screen and a fully configurable RGB LED light bar that changes colour instantly based on live air quality levels.
  • 100% Open Source & Privacy Focused: Built on an ESP32 microcontroller with open firmware and hardware schematics. Works locally with Home Assistant and Homey, or sends data to the optional AirGradient dashboard.
  • RESET Air Accredited: Meets strict commercial building standards for continuous environmental air quality monitoring.
  • Modular & Repairable Design: Durable, UV-resistant ASA plastic designed for long lifespans, easy disassembly, and component replacement.

Specifications

  • Product Type: Indoor Air Quality Monitor
  • Model: AirGradient ONE (I-9PSL)
  • Microcontroller: ESP32-C3-MINI (Wi-Fi 2.4 GHz & Bluetooth LE)
  • Display: 1.3-inch OLED Display (128x64 px) + Configurable RGB LED Bar
  • Particulate Matter Sensor: Plantower PMS5003 (PM1, PM2.5, PM10)
  • Carbon Dioxide Sensor: SenseAir NDIR CO2 module (0–10,000 ppm)
  • Gas / Volatiles Sensor: Sensirion SGP41 (TVOC & NOx Index)
  • Temp & Humidity Sensor: Sensirion SHT40 (±0.2°C / ±2% RH)
  • Enclosure: ASA Plastic (UV-Resistant)
  • Power Connection: USB-C (requires 5V / 2A USB power adapter)
  • Cable Included: 2 m USB-C to USB-A data and power cable
  • Certifications: RESET Air, CE, RoHS, REACH, FCC
  • Dimensions: 13.0 cm (Length) x 13.0 cm (Width) x 3.5 cm (Height)
  • Net Weight: 350 g

Shipping and Delivery

  • Courier Distribution: Shipped securely via a dedicated UK courier network, packaged with internal protective padding to ensure delicate sensor components arrive in optimal condition.
  • Delivery Coordination: Fully tracked delivery with dispatch alerts and tracking information sent via text or email prior to arrival.
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Why You Want Pure Air

At You Want Pure Air, we believe the spaces we live and work in shape how we feel every day.

That’s why we carefully select products designed to support healthier, calmer, and more comfortable living - from cleaner air and restorative sleep to focused workspaces and thoughtful home furnishings.

Every item in our collection is chosen with wellbeing, quality, and sustainability in mind, helping you create a home environment that feels better to live in.

Because better living doesn’t start outside the home. It starts within it.