Aranet Radon Plus vs GoveeLife Smart Air Quality Monitor CO2 H5140

Updated September 2026

Data from Amazon and official Aranet and Govee sites.

2026 verdict

Winner

GoveeLife Smart Air Quality Monitor CO2 H5140

$69.98$89.9922% OFF

Radon monitoring goes deep, CO2 monitoring goes wide, and the wide approach wins the scoreboard: the GoveeLife Smart Air Quality Monitor CO2 H5140 outscores the Aranet Radon Plus on price, connectivity, integrations and its fuller alert lineup. The H5140 pairs 2.4GHz Wi-Fi with Bluetooth and links to Amazon Alexa and Google Home, and beyond its CO2 threshold alarm it also raises separate temperature and humidity alerts, layers the Bluetooth-only Aranet Radon Plus does not offer. The Aranet Radon Plus counters with the specs that matter most for a radon detector: a longer warranty, mild IP20 weather resistance, a higher owner rating, and a broader sensor set that adds radon and atmospheric pressure to temperature and humidity, ground the CO2-only H5140 cannot cover. Screen quality lands in a tie, since both rely on a built-in display for at-a-glance readings. If radon is the hazard you are tracking, especially in a basement, the Aranet Radon Plus is the only real choice of the two; if carbon dioxide buildup in a closed room is the concern, the GoveeLife Smart Air Quality Monitor CO2 H5140 is the more connected, better-alerted pick.

Aranet

Aranet Radon Plus

$209.00

Buy on Amazon USA

Winner

Govee

GoveeLife Smart Air Quality Monitor CO2 H5140

22% OFF

$69.98

$89.99

Buy on Amazon USA

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Feature	Aranet Radon Plus	GoveeLife Smart Air Quality Monitor CO2 H5140	Winner
Price	$209.00	$69.98	GoveeLife Smart Air Quality Monitor CO2 H5140
Rating	4.8	4.4	Aranet Radon Plus
Warranty	2 years	1 year	Aranet Radon Plus
Weather Resistance	IP20	NO	Aranet Radon Plus
Connectivity	Bluetooth	2.4 GHz WiFi, Bluetooth	GoveeLife Smart Air Quality Monitor CO2 H5140
Integrations	Home Assistant	Google Home, Alexa, Home Assistant	GoveeLife Smart Air Quality Monitor CO2 H5140
Sensors	Radon, Temperature, Humidity, Atmospheric Pressure	CO2, Temperature, Humidity	Aranet Radon Plus
Alerts	Air Quality Alerts	Temperature Alerts, Humidity Alerts, Air Quality Alerts	GoveeLife Smart Air Quality Monitor CO2 H5140
Screen	YES	YES	Tie

Aranet

Aranet Radon Plus

$209.00

Buy on Amazon USA

+ Rating: 4.8
+ Warranty: 2 years
+ Weather Resistance: IP20
- Price: $209.00 vs $69.98
- Connectivity: Bluetooth vs 2.4 GHz WiFi, Bluetooth

Winner

Govee

GoveeLife Smart Air Quality Monitor CO2 H5140

22% OFF

$69.98

$89.99

Buy on Amazon USA

+ Price: $69.98
+ Connectivity: 2.4 GHz WiFi, Bluetooth
+ Integrations: Google Home, Alexa, Home Assistant
- Rating: 4.4 vs 4.8
- Warranty: 1 year vs 2 years

Frequently Asked Questions

Which is better overall: the Aranet Radon Plus or the GoveeLife Smart Air Quality Monitor CO2 H5140?

The GoveeLife Smart Air Quality Monitor CO2 H5140 comes out ahead overall on price, connectivity, integrations and its alert lineup. The Aranet Radon Plus wins on warranty, weather resistance and owner rating, and it is the only one of the two that actually measures radon.

What is the biggest difference between the Aranet Radon Plus and the GoveeLife H5140?

What hazard they track. The Aranet Radon Plus is a dedicated radon detector that also reads temperature, humidity and atmospheric pressure over Bluetooth only. The GoveeLife Smart Air Quality Monitor CO2 H5140 has no radon sensor at all and instead focuses on carbon dioxide over Wi-Fi and Bluetooth.

Does the GoveeLife H5140 measure radon?

No. It measures carbon dioxide, temperature and humidity only. For radon tracking, the Aranet Radon Plus is the correct choice between these two, since it includes a dedicated radon sensor plus temperature, humidity and atmospheric pressure.

How do the two compare on weather resistance?

The Aranet Radon Plus carries a mild IP20 rating, while the GoveeLife Smart Air Quality Monitor CO2 H5140 has no weather resistance rating at all. Neither is designed for outdoor or wet-area use.

Who should buy the Aranet Radon Plus?

Homeowners monitoring radon in a basement or radon-prone area, or validating a mitigation system, who want a battery-powered device with a long-life E-Ink display and Home Assistant support.

Who should buy the GoveeLife Smart Air Quality Monitor CO2 H5140?

Buyers concerned with CO2 buildup and ventilation in a closed room rather than radon, who want Wi-Fi connectivity, Alexa or Google Home support and a lower price.

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