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Airthings View Plus vs Corentium Home 2: Everything, or Radon Done Simply?

A question that comes up constantly for anyone who has just discovered radon: pay once for a monitor that covers the whole picture, or buy the focused instrument and spend the difference elsewhere.

By the Akermin Editorial Team · 3 min read

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Short answer: buy the Corentium Home 2 if radon is the question and you want it answered simply and cheaply. Buy the View Plus if you want one device on the wall covering radon, particulates, carbon dioxide and humidity, and you are comfortable with a connected account.

What Each Listing States

Item Airthings View Plus Corentium Home 2
Radon Yes Yes
Other parameters PM2.5, CO2, VOC, humidity, temperature, pressure Temperature, humidity
Connectivity WiFi, app and account required Bluetooth
Operating conditions 4 to 40 C stated Not stated in the bullets
Ongoing costs None stated No lab fees, no waiting, stated
Dependency App required for the device to function App for graphs and history

Only Buy Sensors You Will Act On

A seven-parameter monitor is appealing, and for most households three of those parameters never lead to a decision. The question to ask yourself is what you would actually do differently. A high radon reading leads to mitigation. A high carbon dioxide reading leads to opening a window or changing how a room is used. A high PM2.5 reading leads to running a purifier, closing windows or improving extraction over a cooker. If those actions are on your list, the sensors are worth paying for. Pressure and VOC rarely change anyone’s behaviour.

Two Devices Can Beat One

There is a case for the Corentium Home 2 plus a dedicated carbon dioxide monitor instead of a single View Plus. Radon belongs in the lowest occupied level of the house, often a basement. Carbon dioxide belongs where people spend hours with the door shut, usually a bedroom or an office upstairs. A single combined monitor can only be in one of those places, and putting it in the basement gives you excellent radon data and carbon dioxide readings from a room nobody is breathing in.

The Connected Device Question

The View Plus listing is unusually explicit: the monitor requires the app to function, and an account is required. That is worth understanding before you buy. It means the device is not useful as a standalone display, and its usefulness depends on a service continuing to run. Many buyers are perfectly happy with that trade in exchange for dashboards, history and alerts. Some are not, and they should know beforehand.

Placement Matters More Than the Model

  • Radon belongs in the lowest occupied level, at breathing height, away from draughts, windows and exterior doors.
  • Give any radon monitor at least a few days before drawing conclusions, and compare seasons before deciding the house is fine.
  • A carbon dioxide sensor placed near a window or a doorway reads the ventilation, not the room.
  • Particulate sensors near a cooker or a candle will report what you already know, and miss the general level of the room.

Who Buys Which

  • Radon is the concern, budget matters: Corentium Home 2.
  • One device, whole picture, connected: View Plus.
  • Rental or second property: View Plus, for remote visibility.
  • Radon plus ventilation done properly: Corentium Home 2 downstairs and a dedicated CO2 monitor in the bedroom.

How We Research

All figures come from the manufacturer listings. We did not run laboratory tests and publish no measurements of our own. Rankings in the radon detector roundup and the air quality monitor roundup.

Airthings 2960 View Plus - Battery Powered Radon & Air Quality Monitor (PM, CO2, VOC, Humidity, Temp, Pressure)

Airthings 2960 View Plus - Battery Powered Radon & Air

View on Amazon
Airthings 325 Corentium Home 2 Smart Digital Radon Detector - Portable and Easy-to-use Radon Testing with Bluetooth connectivity and Humidity & Temperature Sensors

Airthings 325 Corentium Home 2 Smart Digital Radon Detector -

View on Amazon
Airthings 2989 View Radon - Radon Monitor with Humidity & Temperature Detector - Battery Powered Mobile APP, WiFi, Alerts & Notifications

Airthings 2989 View Radon - Radon Monitor with Humidity &

View on Amazon

Products shown because their documented specifications fit this guide. Price and availability are on Amazon and can change.

Frequently Asked Questions

Do both measure radon the same way?

Both are continuous digital radon monitors from the same manufacturer, and neither listing publishes an uncertainty figure, so they cannot be separated on published radon accuracy. The View Plus adds six other parameters.

Is the View Plus worth the extra?

If you will use the other sensors, yes. CO2 tells you about ventilation and PM2.5 about smoke and cooking particulates, and both are actionable. If you only want to know your radon level, the extra sensors are money spent on data you will not act on.

Does the View Plus need WiFi and an account?

The listing states it requires the Airthings app to function and that an account is required, giving name and email. It is a connected device rather than a standalone one.

Which is better for a rental property?

The View Plus, because WiFi means you can see readings without visiting. A Bluetooth monitor requires somebody with the app to stand next to it.

Affiliate disclosure: Akermin earns a commission from qualifying Amazon purchases made through links on this page. Our editorial picks are based on documented specifications and owner feedback, not commissions.