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Aranet4 Home
4 metrics in Kaizora
A CO₂ monitor with an accurate sensor and an e-ink screen, whose history Kaizora imports and joins with your location history as your own exposure.
Who It’s For
For anyone wondering whether their bedroom or office needs more fresh air.
Where to Buy
United States
See at Aranet, Aranet4 Home, United States (opens in a new tab)Not an affiliate link
Canada
See at Aranet, Aranet4 Home, Canada (opens in a new tab)Not an affiliate link
What It Measures in Kaizora
CO₂ Concentration, Air Temperature, Relative Humidity, and Barometric Pressure of the air where it stands. When your location history puts you nearby, they also give your own exposure.
- CO₂
- Temperature, humidity, and pressure
How It Gets to Kaizora
A file import: export its history as CSV from the Aranet Home app, then import the file and say which device it was and where it stood.
Strengths
- An NDIR sensor, the accurate kind for CO₂.
- An e-ink display you can read at a glance, and a long life on two AA batteries.
Limits
- No particulate matter, VOCs, or radon.
- No live connection: you export and import the file yourself.
- The file doesn’t say which Aranet4 it came from, so you name the device each time you import.
About What It Measures
What's the Right Humidity at Home?
Why the US EPA suggests keeping indoor humidity between 30 and 50 percent and under 60, what too damp and too dry air do, how temperature changes the reading, and how to follow your home's humidity.
What Counts as a Healthy CO₂ Level at Home, and How to Track It
What the guidelines actually say about carbon dioxide indoors, why 1,000 ppm comes up so often, and how to measure and follow the air in your own home.