Aranet4 HOME
Shows the CO₂ in your bedroom. Small enough to carry to another room when you’re curious.
189.00 USD
Aranet4 HOME · No subscription
Aranet4 HOMEAdd to cart
No subscription. Just the number.
Aranet4 HOME shows the CO₂ in your bedroom on a little screen, in green, yellow or red. Up to 4 years on two AA batteries. The first two are in the box.
- No subscription
- Up to 4 years on two AA batteries
- Batteries in the box
- No Wi-Fi needed
- 2-year warranty, plus 12 months when you register
- FedEx to the US
+ two AA batteries, in the box
What you get
Everything it needs is in the box. Even the batteries.
- Aranet4 HOME, small enough for a pocket.
- Two AA batteries.
- A free app, if you ever want to see how the night went.
- A 2-year warranty, plus 12 more months when you register.
No subscription. No Wi-Fi needed. No cords. Real CO₂, measured by a true NDIR sensor.
One or two?
The bedroom
Two rooms
359.10 USD
Start with the bedroom. Or see two rooms at once.
One for the bedroom. One for the office.
Check the air in your workspace.
“I keep a window cracked when I work there and it’s enough to bring it down to reasonable levels.”
One for their room. One for yours.
Everyone in a room adds CO₂ when they breathe out, kids included.
Do you need two? Not to start. One is pocket-size and can move from room to room. Two show you both rooms on the same night, without moving anything.
Why now?
almost 1,000
0
Up to 4 years
+12 months
No countdown timer. Just four facts.
It’s getting cold and windows are shutting. Researchers who measured Danish bedrooms from September to December found the typical one averaged almost 1,000 ppm while people slept.
subscriptions. The app is free too.
on two AA batteries. The first two are in the box.
on top of the 2-year warranty, when you register.
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.”
Questions
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- No subscription
- Up to 4 years on two AA batteries
- Batteries in the box
- No Wi-Fi needed
- 2-year warranty, plus 12 months when you register
- FedEx to the US
+ two AA batteries, in the box
What you get
Everything it needs is in the box. Even the batteries.
- Aranet4 HOME, small enough for a pocket.
- Two AA batteries.
- A free app, if you ever want to see how the night went.
- A 2-year warranty, plus 12 more months when you register.
No subscription. No Wi-Fi needed. No cords. Real CO₂, measured by a true NDIR sensor.
One or two?
The bedroom
Two rooms
359.10 USD
Start with the bedroom. Or see two rooms at once.
Aranet4 HOME
Shows the CO₂ in your bedroom. Small enough to carry to another room when you’re curious.
189.00 USDOne for the bedroom. One for the office.
Check the air in your workspace.
“I keep a window cracked when I work there and it’s enough to bring it down to reasonable levels.”
One for their room. One for yours.
Everyone in a room adds CO₂ when they breathe out, kids included.
Do you need two? Not to start. One is pocket-size and can move from room to room. Two show you both rooms on the same night, without moving anything.
Why now?
almost 1,000
0
Up to 4 years
+12 months
No countdown timer. Just four facts.
It’s getting cold and windows are shutting. Researchers who measured Danish bedrooms from September to December found the typical one averaged almost 1,000 ppm while people slept.
subscriptions. The app is free too.
on two AA batteries. The first two are in the box.
on top of the 2-year warranty, when you register.
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.”
