MEASURE WHAT MATTERS

Make Indoor Air A Health Metric

Your home air shapes daily health outcomes. CO₂ affects sleep and focus. Radon increases lung cancer risk.

Measure Your Indoor Air

Trusted by 100,000+ homeowners

IAQ Gold standard

Free Mobile App

Choose How You Measure Indoor Air

Different homes. Different risks.
Start with the air that matters most where you live.

Aranet4 HOME

Real time CO₂ monitoring for sleep, focus, and performance. See when air quality drops and act before it affects you.

Aranet Radon Plus

Continuous radon monitoring for basements and ground floors. Track exposure over time where radon risk is highest.

Whole Home Air Control System

Monitor air in two living spaces and track radon on the lowest floor. One kit for daily comfort and long term safety.

2x Aranet4 HOME

1x Aranet Radon Plus

Air Essentials Starter System

Track CO2 indoors. Monitor radon downstairs. Two risks.

One setup. Safer air for daily living.

1x Aranet4 HOME

1x Aranet Radon One

All products

Why Choose Aranet Sensors?

Precision You Can Trust

Lab-grade sensors built for accurate, continuous measurement.
You see real changes in minutes.
No smoothing. No guessing. Clean data for real experiments.

Built for Long-Term Tracking

Bluetooth connectivity for ultra-low power use.
Runs for years on standard batteries.
Stable measurements across weeks and months without intervention.

Real-Time Feedback, Not Guesswork

See changes as they happen.
Ventilate. Adjust. Watch the curve respond.
Cause and effect, visible in minutes.

Environmental Data Your Wearables Miss

Free app. No subscriptions.
Track trends across rooms. Compare nights. Validate interventions.

Aranet measures the environment.
Your wearables measure your body.
Together, they close the loop.

Chosen by People Who Measure Indoor Air Seriously

"Monitoring CO2 is the best tool we have to check indoor air quality. Aranet4 HOME is a great monitor that my family uses all the time."

Joey Fox

Engineer, chaired an advisory group on indoor air quality.

Make Indoor Air a Measurable System

See how indoor air changes over time. Track spikes, averages, and trends so you can act on data, not assumptions.

Track real-time values and long-term trends
Set alerts when levels cross your thresholds
Review historical data to spot patterns
Free app. No subscriptions
One dashboard for all Aranet sensors

Available On

Google Play