This Spring, Know What You're Breathing.

The Aranet4 tracks CO2, temperature, humidity, and pressure in real time - so you always know when to open a window, adjust the heat, or step outside. Better air, better sleep, better mornings. Now $30 off for Spring.

Why Aranet4 HOME

NDIR CO2 Monitor. ±30 ppm Accuracy. 0-9,999 ppm Range.
Measures CO2, Temperature, Humidity & Pressure
Up to 30 Days of History in the App. No Subscription.

Bedroom CO2 Is a Performance Leak

A closed bedroom with two people reaches 1,200-1,800 ppm by morning. That's the level linked to poorer sleep quality and next-day cognitive fog - regardless of how many hours you logged.

Your Office Air Is Slowing Your Decisions

At 1,000 ppm, 6 out of 9 decision-making measures show impairment. CO2 in a home office accumulates throughout the day, peaking 2-4 PM - exactly when your most critical work happens.

Spring Sale. Limited Time Offer.

Save $30.

Real Homes. Real Air. Real Results.