Corentium Home 2 vs Aranet Radon One

Compare sensors, connectivity, certifications, and price side by side, based on official product specifications and manufacturer documentation.

Last updated September 24, 2026 · Comparison published by Airthings

Corentium Home 2

Airthings

Corentium Home 2

Radon COâ‚‚ VOC PM2.5

Connectivity: Bluetooth Low Energy (standalone; SmartLink to Hub/View devices for remote access)

Power: 2x AA batteries

$179.99

Shop Corentium Home 2

Aranet

Aranet Radon One

Radon COâ‚‚ VOC PM2.5

Connectivity: None required — standalone E-ink display; optional sync to Aranet Home app

Power: 2x AA batteries

$140

Technical specifications

Corentium Home 2 (Airthings) Aranet Radon One
Radon detection: Yes Radon detection: Yes
COâ‚‚ monitoring: No COâ‚‚ monitoring: No
VOC monitoring: No VOC monitoring: No
PM2.5 monitoring: No PM2.5 monitoring: No
Connectivity: Bluetooth Low Energy (standalone; SmartLink to Hub/View devices for remote access) Connectivity: None required — standalone E-ink display; optional sync to Aranet Home app
Power source: 2x AA batteries Power source: 2x AA batteries
Battery life: Up to 3 years Battery life: Up to 7 years
Remote access: has Bluetooth and syncs to the Airthings app – readings are also shown directly on the device's built-in display. Remote access: Optional — no app or registration required for basic use
Works with: Airthings app (iOS, Android, Web); SmartLink integration with Airthings Hub/View monitors for remote access Works with: Aranet Home app (iOS, Android) — optional
Mobile app: Yes Mobile app: Yes
Web app: Yes Web app: No
Subscription: Not required Subscription: Not required
Warranty: 1 year (5 years with registration) Warranty: No information located
Price: $179.99 Price: $140

Want to understand what these pollutants actually do?

Radon, COâ‚‚, VOCs, and PM2.5 each affect your health differently. Our resource library breaks down what each one is, how it gets into your home, and what levels actually matter.

Explore air quality resources

Certifications and eligibility

Corentium Home 2

  • ✓ HSA/FSA eligible via Truemed — Purchasable with pre-tax Health Savings Account or Flexible Spending Account funds (via Truemed).

Aranet Radon One

None specified.

Value and ownership costs

Corentium Home 2

  • Price$179.99
  • SubscriptionNot required
  • Warranty1 year (5 years with registration)
  • BatteryUp to 3 years

Aranet Radon One

  • Price$140
  • SubscriptionNot required
  • BatteryUp to 7 years

Airthings

Ready to know what's in your air?

Corentium Home 2 gives you certified radon detection, CO₂, VOC, and more — all in one device, with no subscription required.

Shop Corentium Home 2 Explore all monitors

Frequently asked questions

Both devices measure radon. Aranet Radon One measures radon.

Corentium Home 2: has Bluetooth and syncs to the Airthings app – readings are also shown directly on the device's built-in display.

Aranet Radon One: Optional — no app or registration required for basic use.

Radon is a naturally occurring, colorless, odorless radioactive gas that comes from the breakdown of rocks and soil. It enters homes through cracks in foundations and gaps such as around plumbing entry points. It is the leading cause of lung cancer among non-smokers and the second leading cause overall (US, EPA, and WHO). The EPA recommends fixing your home if the average radon level is consistently at 4 pCi/L or higher, and considering action if it is between 2 and 4 pCi/L. Because both of these devices monitor radon continuously over time, they give a more reliable picture of your exposure than a single short-term test kit.

Specifications for Corentium Home 2 come directly from the Airthings product catalog, so they automatically stay up to date. Aranet Radon One is not part of our product catalog, so its specifications are sourced from their website and product spec sheets, updated periodically.

Airthings products purchased directly from airthings.com can be returned using their 45-day money back guarantee.

Corentium Home 2 specifications are sourced directly from the Airthings product catalog. Aranet Radon One specifications are sourced from publicly available manufacturer documentation, spec sheets, and retailer listings as of September 24, 2026. Prices and specifications are set by the manufacturer and are subject to change without notice; figures shown here may not reflect current availability. Airthings is not affiliated with, endorsed by, or sponsored by Aranet. All product names, logos, and brands are property of their respective owners and are used for identification purposes only. As of September 24, 2026, items labeled "No information located" reflect that information was not found on the competitor's website or on the product or materials accompanying it. Absence of located information does not indicate absence of the feature. Contact support@airthings.com for corrections.

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