The Smart Device Compare comparison

AirGradient ONE vs Aranet Radon Plus

Understand the differences. Decide what matters to your home.

Before you compare every specification

Key differences between AirGradient ONE and Aranet Radon Plus

A summary of selected recorded differences between these air quality monitors. Check the full specification table below for details and conditions.

Feature differences among your selected devices

2.4 GHz Wi-Fi (connectivity): AirGradient ONE — Yes (2.4GHz IEEE 802.11 b/g/n-compliant); Aranet Radon Plus — No.
Automations (features): AirGradient ONE — Yes; Aranet Radon Plus — No.
Atmospheric Pressure (sensors): AirGradient ONE — No; Aranet Radon Plus — Yes.
CO₂ (sensors): AirGradient ONE — Yes; Aranet Radon Plus — No.

Specifications to check side by side

Screen Type (display): AirGradient ONE — OLED; Aranet Radon Plus — E-Ink.
Wired (power): AirGradient ONE — USB-C; Aranet Radon Plus — No.

Information still to confirm

5 of 46 comparison fields lack a resolved value for at least one selected device. Missing information is not evidence that a feature is absent.
Check the full table and manufacturer documentation before ruling out a device.

These observations are derived from recorded catalog data and have not all been independently verified. Confirm details with the manufacturer before purchasing.

Compare capabilities, compatibility and setup requirements.

Option 1 · AirGradient

AirGradient ONE

Catalog update date not recorded

View full device profile

Option 2 · Aranet

Aranet Radon Plus

Last updated October 2026

View full device profile

What the catalog tells us

Understand the tradeoffs.

These counts describe the available data, not a quality score. More features do not automatically make a better device.

13differences with recorded values for every device

5rows with missing or unspecified information

Your priorities, side by side

Focus on what changes.

Mark the specifications you care about. Open manufacturer sources for verification scope; fields without citations remain catalog data. Expand notes for other qualifications.

Differences onlyMy priorities (0)

Showing 46 of 46 rows. “Not recorded” does not mean “No”.

Reading layout

Alerts

Air Quality Alerts

AirGradient ONE: Yes
Aranet Radon Plus: Yes
Catalog note
Scientifically guided radon alarm

Humidity Alerts

AirGradient ONE: Yes
Aranet Radon Plus: Yes
Catalog note
Aranet Home app push notifications fire when a sensor moves past its configured thresholds, relative humidity included.

Low Battery Alerts

AirGradient ONE: Not applicable / unspecified
Aranet Radon Plus: Yes
Catalog note
The Aranet Home app notifies when the battery is low on battery-powered devices.

Temperature Alerts

AirGradient ONE: Yes
Aranet Radon Plus: Yes
Catalog note
Aranet Home app push notifications fire when a sensor moves past its configured thresholds, temperature included.

Connectivity

2.4 GHz Wi-Fi

AirGradient ONE

Yes

Manufacturer source

A 2.4 GHz Wi-Fi connection is documented.

AirGradient I-9PSL product specifications →

Source section: Connectivity
Model: I-9PSL
Region: Manufacturer global product page; no regional restriction stated for these fields
Firmware: Not specified by this source
Checked: 2026-10-04

Specifications describe sensor capabilities, not an independent accuracy test.

Document check only; not a hands-on test or verification of every regional or firmware variant.

Catalog note

2.4GHz IEEE 802.11 b/g/n-compliant

Aranet Radon Plus

5 GHz Wi-Fi

AirGradient ONE: No
Aranet Radon Plus: No

Bluetooth

AirGradient ONE: Yes
Aranet Radon Plus: Yes

Ethernet

AirGradient ONE: No
Aranet Radon Plus: No

Other

AirGradient ONE: No
Aranet Radon Plus: No

Thread

AirGradient ONE: No
Aranet Radon Plus: No

Z Wave

AirGradient ONE: No
Aranet Radon Plus: No

Zigbee

AirGradient ONE: No
Aranet Radon Plus: No

Display

Color Screen

AirGradient ONE: No
Aranet Radon Plus: No

Screen

AirGradient ONE: Yes
Aranet Radon Plus: Yes

Screen Resolution

AirGradient ONE: 128 x 64 px
Aranet Radon Plus: Not recorded

Screen Size

AirGradient ONE: 1.3"
Aranet Radon Plus: Not recorded

Screen Type

AirGradient ONE

OLED

Manufacturer source

An OLED display is documented.

AirGradient I-9PSL product specifications →

Source section: Display
Model: I-9PSL
Region: Manufacturer global product page; no regional restriction stated for these fields
Firmware: Not specified by this source
Checked: 2026-10-04

Specifications describe sensor capabilities, not an independent accuracy test.

Document check only; not a hands-on test or verification of every regional or firmware variant.

Aranet Radon Plus

E-Ink

Touch Screen

AirGradient ONE: No
Aranet Radon Plus: No

Features

Automations

AirGradient ONE: Yes
Aranet Radon Plus: No

History Records

AirGradient ONE: Yes
Aranet Radon Plus: Yes

Integrations

Alexa

AirGradient ONE: No
Catalog note
AirGradient is a local, open source monitor read over MQTT or its own dashboard; it publishes no Alexa skill
Aranet Radon Plus: No
Catalog note
Aranet sensors are Bluetooth instruments read by the Aranet app or the Aranet PRO base station, with no Alexa skill

Apple Home

AirGradient ONE: No
Aranet Radon Plus: No

Google Home

AirGradient ONE: No
Aranet Radon Plus: No

Home Assistant

AirGradient ONE: Yes
Aranet Radon Plus: Yes

Matter

AirGradient ONE: No
Aranet Radon Plus: No

SmartThings

AirGradient ONE: No
Aranet Radon Plus: No

Power

Battery Life

AirGradient ONE: Not applicable / unspecified
Aranet Radon Plus: 7 years

Battery Type

AirGradient ONE: Not applicable / unspecified
Aranet Radon Plus: 2x AA

Wired

AirGradient ONE: USB-C
Aranet Radon Plus: No

Sensors

Ambient Light

AirGradient ONE: No
Aranet Radon Plus: No

Ambient Noise

AirGradient ONE: No
Aranet Radon Plus: No

Atmospheric Pressure

AirGradient ONE: No
Aranet Radon Plus: Yes

AirGradient ONE: No
Aranet Radon Plus: No

CO₂

AirGradient ONE

Yes

Manufacturer source

CO₂ sensing is listed.

AirGradient I-9PSL product specifications →

Source section: Product description; Technical specifications
Model: I-9PSL
Region: Manufacturer global product page; no regional restriction stated for these fields
Firmware: Not specified by this source
Checked: 2026-10-04

Specifications describe sensor capabilities, not an independent accuracy test.

Document check only; not a hands-on test or verification of every regional or firmware variant.

Aranet Radon Plus

Humidity

AirGradient ONE

Yes

Manufacturer source

Humidity sensing is listed.

AirGradient I-9PSL product specifications →

Source section: Product description; Technical specifications
Model: I-9PSL
Region: Manufacturer global product page; no regional restriction stated for these fields
Firmware: Not specified by this source
Checked: 2026-10-04

Specifications describe sensor capabilities, not an independent accuracy test.

Document check only; not a hands-on test or verification of every regional or firmware variant.

Aranet Radon Plus

Yes

Nox

AirGradient ONE

Yes

Manufacturer source

NOx sensing is listed.

AirGradient I-9PSL product specifications →

Source section: Product description; Technical specifications
Model: I-9PSL
Region: Manufacturer global product page; no regional restriction stated for these fields
Firmware: Not specified by this source
Checked: 2026-10-04

Specifications describe sensor capabilities, not an independent accuracy test.

Document check only; not a hands-on test or verification of every regional or firmware variant.

Aranet Radon Plus

Occupancy

AirGradient ONE: No
Aranet Radon Plus: No

Pm01

AirGradient ONE: No
Aranet Radon Plus: No

Pm03

AirGradient ONE: Yes
Aranet Radon Plus: No

Pm1

AirGradient ONE: Yes
Aranet Radon Plus: No

Pm10

AirGradient ONE: Yes
Aranet Radon Plus: No

PM2.5

AirGradient ONE

Yes

Manufacturer source

PM2.5 sensing is listed.

AirGradient I-9PSL product specifications →

Source section: Product description; Technical specifications
Model: I-9PSL
Region: Manufacturer global product page; no regional restriction stated for these fields
Firmware: Not specified by this source
Checked: 2026-10-04

Specifications describe sensor capabilities, not an independent accuracy test.

Document check only; not a hands-on test or verification of every regional or firmware variant.

Aranet Radon Plus

Radon

AirGradient ONE: No
Aranet Radon Plus: Yes

Temperature

AirGradient ONE

Yes

Manufacturer source

Temperature sensing is listed.

AirGradient I-9PSL product specifications →

Source section: Product description; Technical specifications
Model: I-9PSL
Region: Manufacturer global product page; no regional restriction stated for these fields
Firmware: Not specified by this source
Checked: 2026-10-04

Specifications describe sensor capabilities, not an independent accuracy test.

Document check only; not a hands-on test or verification of every regional or firmware variant.

Aranet Radon Plus

Yes

TVOC

AirGradient ONE

Yes

Manufacturer source

TVOC sensing is listed.

AirGradient I-9PSL product specifications →

Source section: Product description; Technical specifications
Model: I-9PSL
Region: Manufacturer global product page; no regional restriction stated for these fields
Firmware: Not specified by this source
Checked: 2026-10-04

Specifications describe sensor capabilities, not an independent accuracy test.

Document check only; not a hands-on test or verification of every regional or firmware variant.

Aranet Radon Plus

AirGradient ONE: No
Aranet Radon Plus: No

Specifications for AirGradient ONE versus Aranet Radon Plus
Specification	AirGradient ONE	Aranet Radon Plus
Alerts
Air Quality Alerts	Yes	Yes Catalog note Scientifically guided radon alarm
Humidity Alerts	Yes	Yes Catalog note Aranet Home app push notifications fire when a sensor moves past its configured thresholds, relative humidity included.
Low Battery Alerts	Not applicable / unspecified	Yes Catalog note The Aranet Home app notifies when the battery is low on battery-powered devices.
Temperature Alerts	Yes	Yes Catalog note Aranet Home app push notifications fire when a sensor moves past its configured thresholds, temperature included.
Connectivity
2.4 GHz Wi-Fi	Yes Manufacturer source A 2.4 GHz Wi-Fi connection is documented. AirGradient I-9PSL product specifications → Source section Connectivity Model I-9PSL Region Manufacturer global product page; no regional restriction stated for these fields Firmware Not specified by this source Checked 2026-10-04 Specifications describe sensor capabilities, not an independent accuracy test. Document check only; not a hands-on test or verification of every regional or firmware variant. Catalog note 2.4GHz IEEE 802.11 b/g/n-compliant	No
5 GHz Wi-Fi	No	No
Bluetooth	Yes	Yes
Ethernet	No	No
Other	No	No
Thread	No	No
Z Wave	No	No
Zigbee	No	No
Display
Color Screen	No	No
Screen	Yes	Yes
Screen Resolution	128 x 64 px	Not recorded
Screen Size	1.3"	Not recorded
Screen Type	OLED Manufacturer source An OLED display is documented. AirGradient I-9PSL product specifications → Source section Display Model I-9PSL Region Manufacturer global product page; no regional restriction stated for these fields Firmware Not specified by this source Checked 2026-10-04 Specifications describe sensor capabilities, not an independent accuracy test. Document check only; not a hands-on test or verification of every regional or firmware variant.	E-Ink
Touch Screen	No	No
Features
Automations	Yes	No
History Records	Yes	Yes
Integrations
Alexa	No Catalog note AirGradient is a local, open source monitor read over MQTT or its own dashboard; it publishes no Alexa skill	No Catalog note Aranet sensors are Bluetooth instruments read by the Aranet app or the Aranet PRO base station, with no Alexa skill
Apple Home	No	No
Google Home	No	No
Home Assistant	Yes	Yes
Matter	No	No
SmartThings	No	No
Power
Battery Life	Not applicable / unspecified	7 years
Battery Type	Not applicable / unspecified	2x AA
Wired	USB-C	No
Sensors
Ambient Light	No	No
Ambient Noise	No	No
Atmospheric Pressure	No	Yes
Co	No	No
CO₂	Yes Manufacturer source CO₂ sensing is listed. AirGradient I-9PSL product specifications → Source section Product description; Technical specifications Model I-9PSL Region Manufacturer global product page; no regional restriction stated for these fields Firmware Not specified by this source Checked 2026-10-04 Specifications describe sensor capabilities, not an independent accuracy test. Document check only; not a hands-on test or verification of every regional or firmware variant.	No
Humidity	Yes Manufacturer source Humidity sensing is listed. AirGradient I-9PSL product specifications → Source section Product description; Technical specifications Model I-9PSL Region Manufacturer global product page; no regional restriction stated for these fields Firmware Not specified by this source Checked 2026-10-04 Specifications describe sensor capabilities, not an independent accuracy test. Document check only; not a hands-on test or verification of every regional or firmware variant.	Yes
Nox	Yes Manufacturer source NOx sensing is listed. AirGradient I-9PSL product specifications → Source section Product description; Technical specifications Model I-9PSL Region Manufacturer global product page; no regional restriction stated for these fields Firmware Not specified by this source Checked 2026-10-04 Specifications describe sensor capabilities, not an independent accuracy test. Document check only; not a hands-on test or verification of every regional or firmware variant.	No
Occupancy	No	No
Pm01	No	No
Pm03	Yes	No
Pm1	Yes	No
Pm10	Yes	No
PM2.5	Yes Manufacturer source PM2.5 sensing is listed. AirGradient I-9PSL product specifications → Source section Product description; Technical specifications Model I-9PSL Region Manufacturer global product page; no regional restriction stated for these fields Firmware Not specified by this source Checked 2026-10-04 Specifications describe sensor capabilities, not an independent accuracy test. Document check only; not a hands-on test or verification of every regional or firmware variant.	No
Radon	No	Yes
Temperature	Yes Manufacturer source Temperature sensing is listed. AirGradient I-9PSL product specifications → Source section Product description; Technical specifications Model I-9PSL Region Manufacturer global product page; no regional restriction stated for these fields Firmware Not specified by this source Checked 2026-10-04 Specifications describe sensor capabilities, not an independent accuracy test. Document check only; not a hands-on test or verification of every regional or firmware variant.	Yes
TVOC	Yes Manufacturer source TVOC sensing is listed. AirGradient I-9PSL product specifications → Source section Product description; Technical specifications Model I-9PSL Region Manufacturer global product page; no regional restriction stated for these fields Firmware Not specified by this source Checked 2026-10-04 Specifications describe sensor capabilities, not an independent accuracy test. Document check only; not a hands-on test or verification of every regional or firmware variant.	No
Uv	No	No

Know what’s behind the comparison.

The table matches specifications by section and field. It preserves notes, separates missing data from explicit “No” values, and keeps qualifications attached to their values. No overall winner is assigned from feature counts.

Read our comparison methodology