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AirGradient air quality monitors

AirGradient / 3 lines, 3 models

Last checked

Which AirGradient air quality monitors should I buy?

AirGradient makes three monitors: the ONE for indoors, the Open Air for outdoors and the Go for carrying.

The ONE and Open Air connect over Wi-Fi, work locally with Home Assistant and have a Homey integration. The Go is on pre-order and adds GPS, an e-ink display and a battery.

Lines

Lines at a glance

3 lines
LineCurrent lineOn sale nowNewestWhat it isModels
ONEYesYesunknownThe indoor monitor, model I-9PSL, with an OLED display.1
Open AirYesYesunknownThe weatherproof outdoor monitor, model O-1PST.1
GoYesNounknownThe portable monitor with GPS and an e-ink display, model P-1PSG.1

Currently sold

Newest first in each series.

Models sold now, newest in each series

2 models. List prices as of Oct 20, 2026How facts are sourced: every cell cites its source below
SeriesModelReleasedMeasuresConnectionPowerPriceNewest
Indoor air quality monitor1 model
AirGradient ONEAirGradient ONEunknownPM2.5, CO2, TVOC, NOx, temperature, humidity[1]Wi-Fi (2.4 GHz), Bluetooth LE[1]USB-C, 5 V; power plug not included[1]$230[1]only model in its series
Outdoor air quality monitor1 model
AirGradient Open AirAirGradient Open AirunknownPM2.5, CO2, TVOC, NOx, temperature, humidity[3]Wi-Fi (2.4 GHz), Bluetooth LE[3]USB-C, 5 V, with a 4 m cable; power plug not included[3]$225[3]only model in its series

Coming soon

Announced or open for pre-order, and not on sale yet. These models are not counted as currently sold.

Announced models not on sale yet

1 model. List prices as of Oct 20, 2026How facts are sourced: every cell cites its source below
ModelCodesAnnouncedExpectedPrice
AirGradient GoP-1PSGunknownPre-orders ship by November 2026[5]$199[6]

At a glance

Every product at a glance

3 product familiesHow facts are sourced: every cell cites its source below
ProductGenerationReleasedTypeStatus
AirGradient ONEunknownunknownIndoor air quality monitor[1]Current[1][2]
AirGradient Open AirunknownunknownOutdoor air quality monitor[3]Current[3][4]
AirGradient GounknownunknownPortable air quality monitor[6]Upcoming[5–7]

Lineup

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AirGradient air quality monitors lineup

3 models. List prices as of Oct 20, 2026How facts are sourced: every cell cites its source below
ProductTypeMeasuresConnectionPowerReleasedStatusHome AssistantHomeyPriceRetailers
Indoor air quality monitor1 model
AirGradient ONEI-9PSLIndoor air quality monitor[1]PM2.5, CO2, TVOC, NOx, temperature, humidity[1]Wi-Fi (2.4 GHz), Bluetooth LE[1]USB-C, 5 V; power plug not included[1]unknownCurrent[1][2]Native (local)Official app (local)$230[1]
Outdoor air quality monitor1 model
AirGradient Open AirO-1PSTOutdoor air quality monitor[3]PM2.5, CO2, TVOC, NOx, temperature, humidity[3]Wi-Fi (2.4 GHz), Bluetooth LE[3]USB-C, 5 V, with a 4 m cable; power plug not included[3]unknownCurrent[3][4]Native (local)Official app (local)$225[3]
Portable air quality monitor1 model
AirGradient GoP-1PSGPortable air quality monitor[6]PM2.5, CO2, TVOC, NOx, temperature, humidity, air pressure[6]Wi-Fi 6 (2.4 and 5 GHz), Bluetooth LE, GPS[6]2000-2500 mAh Li-Po battery[6]unknownUpcoming[5–7]Native (local)unknown$199[6]

Identify a model

The model code is printed in the spec table of each monitor.

Identifying clues

How facts are sourced: every cell cites its source below
MonitorModelWhere it goesPower
ONEI-9PSLIndoorsUSB-C
Open AirO-1PSTOutdoorsUSB-C, 4 m cable
GoP-1PSGCarriedLi-Po battery

Cite this page

AirGradient air quality monitors. Smart Home Canon. https://smarthomecanon.com/lines/airgradient-air-quality-monitors. Last checked 2026-10-20.

Sources

  1. [1]
    MFRairgradient.com / AirGradient ONE indoor monitor
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  2. [2]
    MFRstore72735574.company.site / AirGradient store: ONE I-9PSL fully assembled
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  3. [3]
    MFRairgradient.com / AirGradient Open Air outdoor monitor
    Accessed Back to text
  4. [4]
    MFRstore72735574.company.site / AirGradient store: Open Air O-1PST fully assembled
    Accessed Back to text
  5. [5]
  6. [6]
    MFRairgradient.com / AirGradient Go portable monitor
    Accessed Back to text
  7. [7]
    MFRstore72735574.company.site / AirGradient store: Go P-1PSG fully assembled
    Accessed Back to text