2x Aranet4 HOME · No subscription
Step 3 of 3 · Pick your kit
Back
You’ve seen their numbers
Now see yours.
Aranet4 HOME shows the CO₂ in your bedroom on a little screen, in green, yellow or red. No subscription. The batteries are in the box.
Pick your kit
- No subscription
- Batteries in the box
- 2-year warranty, +12 months when you register
- FedEx to the US
+ two AA batteries
In thebox
What’s in the box
Everything it needs. Even the batteries.
- Aranet4 HOME, small enough for a pocket
- Two AA batteries, already in the box
- A free app, if you want to look back later
- A 2-year warranty, plus 12 more months when you register
No subscription. No Wi-Fi needed. No cords. Up to 4 years on two AA batteries. Real CO₂, measured by a true NDIR sensor.
Try it
Drag the slider. You already know how to read it.
Drag me
Green: below 1,000 ppm.
Yellow: from 1,000 to 1,400 ppm.
Red: above 1,400 ppm.
That’s the color bar, out of the box.
Side by side
Your thermostat is great at one number.
ThermostatAranet4 HOME
Shows the temperatureYesYes
Shows the CO₂NoYes
Green, yellow or red at a glanceNoYes
Fits in a pocketNoYes
Keep the thermostat. Add the number it can’t show you.
Owners
From the first night to year four.
“First night I saw CO2 go up to 2500 ppm and I got up to open windows.”
“Temp and humidity measurements also seem accurate. Screen is bright and easy to read. Haven’t had to replace the battery yet. Easy to connect to app.”
“After four years and multiple units, this is still the most dependable CO2 monitor I’ve used.”
2+1years of warranty
Covered
2-year warranty. Plus 12 more months when you register.
- No subscription. The app is free too.
- Up to 4 years on two AA batteries
- No Wi-Fi needed, no cords
- Ships to the US with FedEx
Before you add it to your cart.
What’s in the box?
Aranet4 HOME and two AA batteries.
One or two?
One covers your bedroom, and it’s pocket-size if you want to carry it around. Two show you two rooms at the same time: the bedroom and the office, or their room and yours.
How does it ship?
To the US with FedEx. It can’t go to PO boxes.
Where should I put it?
At breathing height, about 3–6 feet off the floor, out of direct sun, away from vents and open windows, and not right next to anyone’s face.
Does it detect carbon monoxide?
No. It measures carbon dioxide (CO₂). For carbon monoxide (CO), you need a dedicated CO alarm.
Your bedroom has had a number all along. Time to see it.
Add to cart
Step 3 of 3 · Pick your kit
Back
You’ve seen their numbers
Now see yours.
Aranet4 HOME shows the CO₂ in your bedroom on a little screen, in green, yellow or red. No subscription. The batteries are in the box.
Pick your kit
- No subscription
- Batteries in the box
- 2-year warranty, +12 months when you register
- FedEx to the US
+ two AA batteries
In thebox
What’s in the box
Everything it needs. Even the batteries.
- Aranet4 HOME, small enough for a pocket
- Two AA batteries, already in the box
- A free app, if you want to look back later
- A 2-year warranty, plus 12 more months when you register
No subscription. No Wi-Fi needed. No cords. Up to 4 years on two AA batteries. Real CO₂, measured by a true NDIR sensor.
Try it
Drag the slider. You already know how to read it.
Drag me
Green: below 1,000 ppm.
Yellow: from 1,000 to 1,400 ppm.
Red: above 1,400 ppm.
That’s the color bar, out of the box.
Side by side
Your thermostat is great at one number.
ThermostatAranet4 HOME
Shows the temperatureYesYes
Shows the CO₂NoYes
Green, yellow or red at a glanceNoYes
Fits in a pocketNoYes
Keep the thermostat. Add the number it can’t show you.
Owners
From the first night to year four.
“First night I saw CO2 go up to 2500 ppm and I got up to open windows.”
“Temp and humidity measurements also seem accurate. Screen is bright and easy to read. Haven’t had to replace the battery yet. Easy to connect to app.”
“After four years and multiple units, this is still the most dependable CO2 monitor I’ve used.”
2+1years of warranty
Covered
2-year warranty. Plus 12 more months when you register.
- No subscription. The app is free too.
- Up to 4 years on two AA batteries
- No Wi-Fi needed, no cords
- Ships to the US with FedEx
