Works With:
Home Assistant
Protocols:
WiFi
Hub Required:
Hub Required
No
Power:
Power Source
Plug-in
Location:
Indoor/Outdoor
Indoor Only
Manufacturer:
AirGradient
The AirGradient ONE is an award-winning open-source air quality monitor measuring PM2.5, CO2, TVOCs, NOx, temperature, and humidity using premium Sensirion and Plantower sensors. The 1.3-inch OLED display and 11 RGB LEDs provide instant visual feedback. Available as a DIY kit or fully assembled, it features native Home Assistant integration, open firmware for customization, and CE/FCC/RoHS certification. Winner of multiple accuracy awards for indoor monitoring under €500.
Specifications
Sensors
PM2.5, CO2, TVOCs, NOx, temp, humidity
CO2 Sensor
Senseair S8/S88
PM Sensor
Plantower PMS5003
VOC/NOx Sensor
Sensirion SGP41
Temp/Humidity
Sensirion SHT40 (±0.2°C, ±1.8% RH)
Dimensions
130 x 130mm
Display
1.3" OLED (128x64)
LEDs
11 programmable RGB NeoPixels
Power
5V/2A USB
MCU
ESP32-C3
Smart Home
Native Home Assistant support
Certification
CE, FCC, RoHS, REACH
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