Radon monitoring with Wi‑Fi and app alerts at an all-time low price

Yes — the Airthings View Radon 2989 is worth buying if you want a credible, app-connected radon monitor and you can use its current all-time-low price of £126.05 to your advantage. With a 4.4/5 rating from 654 reviews and a 25% saving versus the £169.00 RRP, it lands in the sweet spot for homeowners who need more than a basic detector but don’t want to overpay for it.

First impressions

Airthings has positioned this as a practical home safety device rather than a flashy gadget. The Calm Tech display is a good fit for that approach: you can wave in front of the unit to check levels, and the colour coding keeps the interface simple. That matters for radon, because the point is not constant screen-checking — it’s having a device that quietly tracks a long-term risk in the background.

What does it actually measure?

This model measures radon, humidity, and temperature, which makes it more useful than a single-purpose radon detector. Radon is the main event here, but humidity and temperature readings help you understand the broader indoor environment, especially in UK homes where damp, condensation, and mould can become issues during colder months. The listing also says the sensor is Airthings’ “most accurate, robust and sustainably-designed radon sensor,” which is a strong claim, but the useful takeaway is that this is a more mature radon platform than a bare-bones alarm.

How the smart features help

The built-in WiFi connection is one of the biggest reasons to choose this over simpler radon monitors. You can view readings in the free Airthings app on iOS or Android, use the online dashboard, and get graphs, notifications, and insights over time. That matters because radon is not something you assess from a single reading; trends are the whole point. The Alexa integration and support for IFTTT or Homey also make it easier to connect readings to other smart-home actions, such as triggering purifiers, heaters, or plugs.

Performance and practical use

For a radon monitor, performance is less about dramatic instant feedback and more about consistency, visibility, and data access. This product is clearly designed for people who want to monitor a home over time rather than just test once and forget it. The app-based graphs and notifications are the most useful part of the package, especially if you are checking a property in an area where radon risk is a concern or if you want to keep an eye on rooms that feel stuffy, damp, or poorly ventilated.

Build quality and setup

Airthings includes 6 AA batteries and a Quick Start Guide, which suggests it is meant to be straightforward to get running. The battery-powered design also gives flexibility in placement. The main build-quality signal here is not a metal casing or premium finish claim — it is the combination of a known brand, a focused feature set, and a user rating of 4.4/5 from 654 reviews, which indicates most buyers are getting what they expected.

Value for money

At £126.05, this is a better buy than it looks at full price. It is currently 25% off the £169.00 RRP, and the price data says this is the all-time lowest recorded price, with the current price matching the average and lowest at £126.05. That makes timing favourable. You are paying more than budget CO2-only monitors, but those are not direct substitutes: radon monitoring is a different job, and the added WiFi/app features justify the premium for people who actually need radon data.

How does it compare to alternatives?

Against the Airthings Corentium Home 2 at £149.00 and 4.4★, the View Radon 2989 looks stronger on convenience because it adds WiFi, app access, and hub functionality. If you only want portable radon measurement, the Corentium Home 2 may be enough, but this model is better for ongoing monitoring in a fixed room.

Against the SAF Aranet4 Home at £159.00 and 4.6★, the Airthings is the more specialised radon product. The Aranet4 is a smart indoor air quality monitor for CO2, temperature, and humidity, so it suits ventilation and occupancy monitoring better, while the Airthings is the one to pick when radon is the priority.

Against the SwitchBot CO2 detector at £47.59 and 4.5★, the Airthings is far more expensive, but it solves a different problem. The SwitchBot is a budget CO2 monitor with a hub requirement for WiFi; it does not replace a dedicated radon monitor.

The main warning

The biggest limitation is that this is a radon-first device, not a general air purifier or all-purpose indoor air quality solution. If your main concern is dust, pollen during UK allergy season, or mould spores, this monitor will help you understand humidity and temperature patterns, but it will not clean the air. It also sits at a higher price point than simple monitors, so buyers who only want basic CO2 or humidity data may find it over-specified.

If you want a connected radon monitor with app tracking, smart-home support, and a price that is currently at its lowest recorded level, this is a compelling purchase. If you do not specifically need radon monitoring, there are cheaper alternatives that may fit your needs better.