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Air Quality Monitors · Head to head

Airthings 2950 Wave Radon vs SONOFF SAWF-08P Air Quality Monitor

Full Smart Air Quality Monitors comparison in 2026

Updated September 2026
Data from Amazon and official Airthings and Sonoff sites.
2026 verdict
Just need a number for CO2? The SONOFF SAWF-08P Air Quality Monitor is the practical pick between this radon-vs-CO2 pairing.
SONOFF SAWF-08P Air Quality Monitor
Winner
SONOFF SAWF-08P Air Quality Monitor
$49.90
Buy on Amazon USACheck price
It runs a proper NDIR CO2 sensor, puts the reading on a large display, and commissions natively over Matter into Apple Home, Alexa, Google Home, SmartThings and Home Assistant with no hub. The Airthings 2950 Wave Radon answers back with the one thing the SONOFF cannot do at all: it actually detects radon, plus temperature and humidity, syncing over Bluetooth with an optional SmartLink hub for continuous data. Both track temperature and humidity, and both hold a similar owner rating for what they do. If radon is the concern, the Wave Radon is not optional; if it's a CO2 reading you want, wired into whatever smart home platform you already run, the SAWF-08P is the simpler, cheaper buy.
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FeatureAirthings 2950 Wave RadonSONOFF SAWF-08P Air Quality MonitorWinner
Price$109.15$49.90SONOFF SAWF-08P Air Quality Monitor
Rating4.44.3Airthings 2950 Wave Radon
ConnectivityBluetooth, Other2.4 GHz WiFiAirthings 2950 Wave Radon
ScreenNOYESSONOFF SAWF-08P Air Quality Monitor
IntegrationsGoogle Home, Alexa, Home AssistantGoogle Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, MatterSONOFF SAWF-08P Air Quality Monitor
AlertsTemperature Alerts, Humidity Alerts, Air Quality Alerts, Low Battery AlertsTemperature Alerts, Humidity Alerts, Air Quality AlertsAirthings 2950 Wave Radon
Weather ResistanceNONOTie
SensorsRadon, Temperature, HumidityCO2, Temperature, HumidityTie

What the differences mean

What each one detects

The Wave Radon exists to track radon over time, on batteries; the SAWF-08P has no radon sensor and instead reads CO2 continuously over mains power. Neither substitutes for the other.

Display

The SAWF-08P shows CO2, temperature and humidity on a permanent LCD panel; the Wave Radon has no screen at all, just a wave-activated status ring, so you check exact numbers in the app.

Smart home reach

The SAWF-08P's native Matter support reaches Apple Home, Alexa, Google Home, SmartThings and Home Assistant with no hub. The Wave Radon works with Google Home, Alexa and Home Assistant, and has no Apple Home, SmartThings or Matter support.

Power

The Wave Radon runs on 2 AA batteries so it can go anywhere; the SAWF-08P needs a permanent USB-C connection, which rules out battery-only placements.

Which one to buy if

  • radon is what you're trying to catch
    Airthings 2950 Wave Radon

    It's a purpose-built radon detector; the SAWF-08P has no radon sensor at all.

  • you want one CO2 reading visible on a screen
    SONOFF SAWF-08P Air Quality Monitor

    Its permanent LCD shows CO2 continuously, something the Wave Radon's status ring cannot do.

  • your smart home isn't Google Home, Alexa or Home Assistant
    SONOFF SAWF-08P Air Quality Monitor

    Native Matter gets it into Apple Home and SmartThings too, where the Wave Radon has no path in.

  • you need to place the sensor somewhere with no outlet
    Airthings 2950 Wave Radon

    AA batteries let the Wave Radon go anywhere; the SAWF-08P must stay plugged in.

What owners say

Owners of both devices land on the same first impression: setup takes minutes and neither needs a manual to understand its readout. From there they diverge with what each device is built to answer. Airthings 2950 Wave Radon owners describe watching levels fall after fixing a mitigation fan and trust the readings enough to base decisions on them, though a few wish it had Wi-Fi instead of Bluetooth-only sync. SONOFF SAWF-08P Air Quality Monitor owners praise how quickly it commissions into Matter with no separate hub and how readable the display is, while some flag that the USB-C port sits on the back, making a flush wall mount awkward, and that there's no manual calibration control.

Price history compared

Every price change of both, in the same store, so the gap between the two lines is what one costs more than the other.

  • Airthings 2950 Wave Radon
  • SONOFF SAWF-08P Air Quality Monitor

Loading price history...

Frequently Asked Questions

Which is better overall: Airthings 2950 Wave Radon or SONOFF SAWF-08P Air Quality Monitor?

It depends on the pollutant. For radon, the Airthings 2950 Wave Radon is the only real option, since the SONOFF SAWF-08P Air Quality Monitor has no radon sensor. Judged purely as a CO2, display and platform comparison, the SONOFF SAWF-08P Air Quality Monitor comes out ahead.

Does the SONOFF SAWF-08P Air Quality Monitor detect radon?

No. It measures CO2, temperature and humidity only. The Airthings 2950 Wave Radon is the dedicated radon detector of the pair.

What is the biggest difference between the Airthings 2950 Wave Radon and the SONOFF SAWF-08P Air Quality Monitor?

What they're built to detect and how they're powered. The Wave Radon runs on batteries and tracks radon with no screen; the SAWF-08P is mains powered, tracks CO2, and shows it on a permanent display.

Which one works with more smart home platforms?

The SONOFF SAWF-08P Air Quality Monitor. Its native Matter support reaches Apple Home, Alexa, Google Home, SmartThings and Home Assistant with no hub, while the Airthings 2950 Wave Radon covers Google Home, Alexa and Home Assistant only.

Who should buy the Airthings 2950 Wave Radon?

Anyone tracking radon in a basement or crawlspace, or checking that a mitigation system is still working, who wants a battery-powered detector they can place anywhere.

Who should buy the SONOFF SAWF-08P Air Quality Monitor?

Buyers who want an affordable, always-on CO2 monitor that plugs into whatever Matter-based smart home they run, and who don't need radon detection.

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